Journal of Informatics and Mathematical Sciences
Volume 2 (2010), Numbers 2 & 3, pp. 71–93
© RGN Publications
http://www.rgnpublications.com
GEM and the Υ(1S)
D. White
Abstract. The Gluon Emission Model (GEM), first proposed by F. Close in 1979,
has been shown to serve very nicely as a basis for calculations of not only the
widths of the ρ meson, the φ meson, the K ∗ (892), and the J meson, but also
for the determination of the strong coupling parameter, αs , over essentially the
entire range of experimentally reachable energy, leading to an evaluation of αs
at the Z boson energy of 0.121 ± 0.003. The GEM has built into its framework
two precepts of prime importance for the carrying out of the above types of
calculations: (1) the specification of a quark spin-flip matrix element as the central
determinant of a vector meson resonance and (2) the virtual photon and the
gluon as two aspects of the same entity, viz., the four-momentum propagator. The
prime significance of (1) is that the square of the quark spin-flip matrix elements
in vector meson width calculations are proportional to qi4 , where qi represents
the magnitude of the charge of quark type “i”. The significance of (2) is that
the virtual photon and the gluon essentially obtain their identities from what the
vertices of origin and termination are in the relevant Feynman Diagram. Close, as
a point of fact, represents the virtual photon as transmuting into a gluon . . . and
vice versa . . . where necessary, all transmutation couplings being of magnitude, 1.
The ramifications of (1) are that, as (2/3)4 is 16 times (1/3)4 , it is quite easy
to determine that the cc ∗ (charm – anti-charm) structure of the J(3097) must
transmute to an ss∗ (strange — anti-strange) in point-like manner, such that it is
the ss∗ structure that undergoes the spin-flip at the J(3097) resonance. Likewise,
the Υ(1S) must transmute in point-like manner from its original bb∗ (bottom –
anti-bottom) structure to a cc ∗ structure before decaying. The ramification of
(2) is that the leptonic width to hadronic width ratio associated with the same
basic decaying structure must be in the ratio of α to αs , where α represents the
fine structure constant = (1/137.036).
At the present juncture in the literature is found that the GEM predicts the
hadronic width of the Υ(1S) to be ∼41 Kev, whereas the figure for same as stated
in the 2008 Meson Table from the Particle Data Group (PDG) is ∼50 Kev. The
discrepancy noted above (23%) is extremely important, because, if we were to
assume that the GEM was in error by such amount, it turns out that all other
GEM calculations, currently essentially exactly on the mark as to the ρ, the φ,
the K ∗ (892), the J, and αs at the Z mass, would have to be rendered as 23% too
large by bringing the GEM’s determination of the Υ(1S) in line with the PDG’s
determination of same through adjustment of the GEM’s determination of αs .
Hence, in order to make the GEM as currently constructed fit the PDG as to the
hadronic width of the Υ(1S), all other GEM calculations would be discrepant by
the same amount, i.e., 23%, at each diverse point of the energy spectrum where
2010 Mathematics Subject Classification. 81-XX (Quantum Theory).
Key words and phrases.Gluon emission model; Υ(1S); Quark spin-flip matrix element; Four-Momentum
propagator.
72
the GEM has been successfully applied. Clearly, then, what must be addressed
in the present work are the details in the GEM’s determination of the
width of the Υ(1S), with an eye towards any reasonable modifications that
might remove the above-mentioned disparity. Unlike the theoretical structures
prevalent in the literature that one encounters as to determining the width of
the Υ(1S), the GEM theory is about as simple as it gets: One fundamental
process is posited for the formation and decay of any spin one meson, i.e.,
a quark spin-flip; the gluon absorption cross-section for said process is then
integrated over energy, and from there, the Feynman Diagram resulting in
hadron or lepton pairs is then calculated. We review the development of
the GEM and its applications, from its beginnings in 1979 through 2009 . . .
including the 23% disparity noted above. We then postulate the existence of
an additional process involved in the decay of the Υ(1S) . . . one not assumed
to be extant in the other, less massive vector mesons to which the GEM
has been successfully applied. We find that the “additional route of decay”
removes completely the noted disparity without affecting the GEM in its other
applications. Finally, the GEM ansatz as presented herein is applied to the Υ(2S)
with noteable success.
1. Introduction
As stated in the Abstract, the Gluon Emission Model (GEM), proposed by F. Close
in 1979 (see F. Close (1979)), has been quite successful in determining on a purely
theoretical basis the widths of the K ∗ (892) and the J(3097), once three constants
are determined in the general expression, assumed universal, for the width of any
vector meson. At the present juncture it would be useful to put forth the basic
framework of the GEM as published in White (2008-R), “The Gluon Emission
Model for Hadron Production Revisited”. Immediately below is found an excerpt
from the Introduction of said article which lays the foundation for the GEM:
In all quantum systems in which natural decay occurs between an excited level
and the ground state, the integrated absorption cross-section goes as
σ(ω) = Kα|V |2 (1/m)2 (1/ω)L(ω),
(1)
where K is a constant, ω represents photon frequency, |V |2 represents the square
of the matrix element descriptive of the photon emission process, the system has
mass m, L(ω) is a Lorentz Amplitude with a peak at ω = ω0 and with a width Γ,
and α = (1/137.036) represents the fine structure constant.
Assuming “asymptotic freedom”, i.e., that we may ignore the masses of the
decay products (light hadron pairs) in relation to the total energy involved in the
system under investigation, we may employ Eq. (1) to predict the width of vector
mesons by making the following substitutions to take us from a general quantum
electrodynamics (QED) to a specific quantum chromodynamics (QCD) process:
We substitute for the photon frequency ω the gluon energy Q 0 .
We evaluate the right hand side of Eq. (1) at a specific vector meson mass, m v ,
i.e., Q 0 = m = m v . (Hence, the associated Lorentz Amplitude equals unity.)
GEM and the Υ(1S)
73
We require |V |2 to be proportional to Σi (qi )4 , where qi = quark charge (in units
of electron charge magnitude) associated with the quarks comprising the relevant
vector meson. (The above criterion is consistent with spin-spin interaction [see
also R. Dalitz (1977), p. 604] proportional to qi2 , where i denotes quark flavor,
giving rise to spin-flip transitions, and the sum is required only in the case of the
ρ, as it comprises both the up quark (u) of charge qu = 2/3 and the down quark
(d) of charge qd = −1/3.)
We postulate |V |2 to be proportional to only Σi (qi )4 , i.e., the precise form of the
interaction is universal to all vector mesons in their ground states, except for quark
charge differences.
We replace α by αs , the strong coupling parameter, which has the well-known
form from QCD gauge invariance theories (see [2, S. Gasiorowicz and J.L. Rosher,
American Journal of Physics 49(1981), 954 and ff]) of:
αs = B[ln(Q 0 /Λ)]−1 ,
(2)
where B is a constant and Λ is a parameter to be determined. Again, we emphasize
that commensurate with the above replacements is that we must assume that
the initial energy involved in the formation of a given vector meson is extremely
high, i.e., in the “asymptotically free” region of energy space, where the masses of
emerging hadron pairs as decay products can be neglected. Accordingly, then, we
find in terms of the above ansatz (normalizing to the ρ)
Γ v = A(m p /m v )3 (Σi (qi )4 )[ln(m v /Λ)]−1 ,
(3)
where Γ v represents the width of a given vector meson, v, and A is a constant to
be determined.
The constants, A and Λ, may be determined by simultaneously fitting the width
of the ρ and the width of the kaon branch of the φ to the form of Eq. (3) in
the above quotation, and B may be determined by evaluating αs at the Υ(1S)
energy through the utilization of the experimentally determined partial width
associated with the Υ(1S) → e+ e− decay in conjunction with the GEM-theoretical
hadronic width of the Υ(1S) (see White (2008-R)). In conventional terms (see
White (2010)) the hadronic width of any vector meson may be expressed as the
following:
Γ v ≈ (αs /2π)(10, 042)(2me )(m p /m v )3 (Σi (qi )4 ),
(1)
where me represents the electron mass of 0.511 Mev, so that 2me = 1.022 Mev,
αs represents the strong coupling parameter, given by αs = 1.2[ln(m v /50 Mev)]−1 ,
m p represents the mass of the ρ meson, m v represents the mass of the vector meson
with designate “v”, and qi represents the charge of the relevant quark type(s) “i”
to undergo the spin flip to form the vector meson under consideration. The qi
74
D. White
involved in ρ formation, for example, are the qu = 2/3 and qd = −1/3, where
“u” designates an “up quark” and “d” designates a “down quark”. Only qs = 1/3,
where “s” designates a “strange quark”, is involved in the formation of the kaon
branch of the φ, whereas qu , qd , and qs are all involved in the formation of the
K ∗ (892) (see White (2008-R, 2008-K)). In addition, as we will see below, the qi
associated with the J(3097) is actually qs , and that associated with the Υ(1S) is
actually qc = −2/3, where “c” is the designate for the “charm quark” (see also
White (2008-R)).
Now, since the GEM treats the virtual photon and the gluon as, essentially, two
aspects of the same entity, which we will call “the four-momentum propagator”
and designate as “ζ”, by definition, the ratio of the partial width associated with
a given decaying pair of quarks comprising a given vector meson associated with
electron-positron decay to the hadronic width of same is simply (α/αs ), where “α”
represents the fine structure constant = (1/137.036). Hence, the general form for
the partial width of a vector meson undergoing e+ e− decay would be given by
Γ v−ee ≈ (α/2π)(10, 042)(2me )(mρ /m v )3 (Σi (qi )4 ).
(2)
A relevant Feynman Diagram will make the various aspects of the GEM easier
to picture, so let us look now to Figure 1 below, which represents the Feynman
Diagram (FD) associated the formation and decay of vector meson “X ” in its
simplest possible form.
Figure 1. Basic Feynman Diagram for Conventional Vector Meson
Formation/Decay via the GEM.
In Figure 1 ζ1 represents, in part, a virtual photon created at the e+ e−
annihilation vertex, coupling at said vertex represented as α; then, in Close’s
terms, the virtual photon couples to a gluon with coupling strength “1”, which
then couples to the x x ∗ . . . a given quark – anti-quark pair, also with coupling
strength “1”. In our notation ζ1 simply represents a four-momentum propagator,
created at the e+ e− vertex and absorbed (as a gluon) at the x x ∗ node. The details
of the absorption of ζ1 are contained in the integrated absorption cross-section
as exhibited in the quotation from White (2008), and |V |2 , proportional to q4x ,
describes the formation of the spin one resonance. From there ζ2 (a gluon) is
emitted, resulting in coupling to hadrons (h; h∗ ), the coupling at the latter vertex
of magnitude αs . The calculation of the width of the x x ∗ state is, given the stated
GEM and the Υ(1S)
75
mechanism of a spin flip of one of the “x quarks” due to a spin - spin interaction
proportional to q2x , proceeds straight along the dictates of standard QED, except
for the replacement of α by αs at the hh∗ vertex.
For comparison, immediately below we present the FD associated with the same
X meson, assumed to exist in the realm of asymptotic freedom, decaying into an
electron-positron pair.
Figure 2. Basic Feynman Diagram for Conventional Vector Meson
Formation and Decay into an Electron/Positron Pair via the GEM.
The only fundamental difference between Figure 1 and Figure 2 is that in
Figure 2 ζ2 starts out as a gluon and ends up as a virtual photon at the right
hand vertex, at which point the coupling, of course, is now α. Hence, all in the
width calculation associated with Figure 1 is the same in Figure 2, except that αs
in Eq. (1) is replaced by α. Of note, too, and we shall return to the point made
here, Figure 2 represents rigorously a straight-forward calculation in QED, again,
given the stated mechanism for the formation of the resonance state. However, it
is also important to note that Figure 2 applies only to vector mesons existing in the
realm of “asymptotic freedom”, i.e., to the J(3097), the Υ(1S), and “Toponium”,
or the “T ” meson.
In Section 2, which follows, we will view the detailed FDs required by the GEM
to describe the widths of the ρ, the φ, the K ∗ (892) . . . a very interesting case,
as the K ∗ (892) is not conventionally thought of as a vector meson per se, though
it is of the spin one variety . . . the J(3097), the Υ(1S), and the “T ”. In addition
we will review briefly the successful match with experiment that the GEM-derived
strong coupling parameter function currently demonstrates over a very wide range
of energy.
2. Applications of the GEM (1979-2009)
2.A. The ρ Meson
Although the width of the ρ (and the φ) as determined by the GEM is
guaranteed to be a match to experiment by construction, the ρ is a good place
to start with the elucidation of the application of the GEM to the various spin one
mesons because of the simplicity involved. Let us begin by viewing Figure 3 below
. . . the FD associated with the formation and decay of the ρ meson.
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D. White
Figure 3. Basic Feynman Diagram for Formation and Decay of the ρ
meson via the GEM.
In Figure 3 ζ1 represents a virtual photon created at the e+ e− vertex which
transmutes to a gluon, which, in turn, is absorbed by the [qu qu∗ + qd qd∗ ]
combination; ζ2 represents the emitted gluon, which converts to pion pairs. The
application of Eq. (1) results in the following for the hadronic width of the ρ:
Γρ (αs /2π)(10, 042)(2me )(Σi (qi )4 )
≈ (αs /2π)(10, 042)(2me )(17/81),
(3a)
where
αs = 1.2[ln(776/50)]−1 = 0.4376.
(3b)
Γρ ≈ 150 Mev.
(3c)
Hence,
Though adaptation of Figure 2 and Eq. (2) do not formally apply, as asymptotic
freedom does not apply to the ρ, we note that in the event that it were to apply,
we would obtain for the electron/positron partial width, Γρ−ee , the following:
Γρ-ee ≈ (α/2π)(10, 042)(2me )(17/81) ≈ 2.50 Mev a figure about 355 times
too high (see PDG (2009-M)), indicating that the transmutation coupling of the
ζ2 gluon to its virtual photon identity is only 0.0028, as opposed to 1 in the
asymptotically free energy regime.
2.B. The φ Meson
Application of the GEM to the kaon branch of the φ meson (φK ) follows similar
lines as to the ρ. The FD associated with the formation and decay of the kaon
branch of the φ may be seen below.
For the hadronic width of the kaon branch of the φ we obtain:
Γφ−K ≈ (αs /2π)(10, 042)(2me )(m p /m v )3 (Σi (qi )4 )
≈ (αs /2π)(10, 042)(2me )(776/1019)3 (1/81),
(4a)
where
αs = 1.2[ln(1019/50)]−1 = 0.3981.
(4b)
GEM and the Υ(1S)
77
Figure 4. Basic Feynman Diagram for Formation and Decay of the Kaon
Branch of the φ Meson via the GEM.
Hence,
Γφ−K ≈ 3.55 Mev.
(4c)
Again applying Eq. (2) to the kaon branch of the φ, we obtain for its e+ e− partial
width the following:
Γφ−K−ee ≈ (α/2π)(10, 042)(2me )(776/1019)3 (1/81) ≈ 0.0650 Mev,
a figure still way too high as compared to experiment (see PDG (2009-M)), but
here about 52 times so, indicating that the ζ2 gluon to virtual photon transmutation coupling has risen to 0.0194.
2.C. The K ∗ (892)
The situation regarding the K ∗ (892) is highly interesting. Close had developed
the GEM in the 1970s to describe two distinct processes: (1) the production of
pion pairs associated with the ρ resonance and (2) the production of kaon pairs
associated with the φ resonance. In a sense, then, the GEM was first envisioned to
be “route specific”, i.e., the spin flip process involving up and down quarks, which
resonates at the ρ mass, was thought of as “the pion route” in thinking of the decay
of quark – anti-quark structures, while the spin flip process involving the strange
quark, which resonates at the φ mass, was thought of as the corresponding “kaon
route”. At that time no one had thought of applying the GEM to the K ∗ (892),
because, although energetically possible, the K ∗ (892) did not exhibit “a pion
route” in its decay; rather, the K ∗ (892) decays almost exclusively into various
{π, K} combinations, with equal probability of occurrence among the various
allowed decay products. Such circumstance led to the invention of the “isospin”
quantum number, a half integer value for which signifying a forbidden decay
route that is energetically possible. However, since the spin associated with the
K ∗ (892) is one, it is quite feasible that the GEM, appropriately mitigated to fit
the situation pertaining to the K ∗ (892)’s isospin, may be applied to the K ∗ (892)
resonance. In fact, the GEM has been applied to the K ∗ (892) quite successfully (see
White (2008-R and 2008-K)). The reasoning leading to the proper mitigation is as
follows:
78
D. White
Since pions and kaons are the decay products of the K ∗ (892), with the various
types of pions combining with correspondingly allowed various types of kaons
and all types showing up with equal probability, it is reasonable to assume that
the K ∗ (892). . . for purposes of discussion here considered as a composite entity of
mass, 894 Mev, i.e., no distinction as to charged mode versus neutral mode being
made, comprises a linear combination of {uu∗ , dd ∗ , and ss∗ } in equal measure.
Symbolically, we may represent the K ∗ (892), therefore, as
p
K ∗ (892) = (1/ 3)[uu∗ + dd ∗ + ss∗ ].
(5)
Now, the associated value of (Σi (qi )4 ) would be (18/81), but the “pion route”
does not occur, though it is energetically possible. So, segmenting the decay
in terms of “routes”, the {π, K} route, whose (Σi (qi )4 ) = (18/81) does occur,
whereas the “pion route”, whose (Σi (qi )4 ) = (17/81) does not occur. The allowed
route is thus favored over the forbidden route by the factor (18/17), therefore.
Hence, we postulate that the isospin quantum number = (1/2) assigned to the
K ∗ (892) signifies that of the energetically possible routes available to the K ∗ (892)
resonance, (18/35) of them manifests in the decay process (the {π, K} route),
whereas (17/35) of them fails to materialize (the pion route). We thus multiply
the right hand side of Eq. (1) by (18/35) to obtain the width of the K ∗ (892). First,
let us view the associated FD:
Figure 5. Basic Feynman Diagram for Formation and Decay of the
K ∗ (892) via the GEM.
The GEM yields for the width of the K ∗ (892) the following:
ΓK ∗ ≈ (18/35)(αs /2π)(10, 042)(2me )(mk∗ /m v )3 (Σi (qi )4 )
≈ (18/35)(αs /2π)(10, 042)(2me )(776/894)3 (18/81),
(6a)
where
αs = 1.2[ln(894/50)]−1 = 0.4161.
(6b)
ΓK ∗ ≈ 50.80 Mev.
(6c)
Hence,
From White (2008-K) the average of the widths associated with the charged
and neutral modes of the K ∗ (892) (from PDG (2004-M)) is stated as ΓK ∗ (PDG) =
GEM and the Υ(1S)
79
50.75 Mev. Hence, the GEM as applied to the K ∗ (892) provides for fabulous
agreement with experiment. Moreover, the GEM demonstrates quite clearly that
the K ∗ (892) is not a strange meson in the usual sense, i.e., it is seen not as a us∗ ,
su∗ , ds∗ , or sd ∗ structure at all; rather it is seen, similar to the theoretical structures
of the ρ and the φ, as comprising a linear combination of more than one type of
quark - anti-quark pair, its specific nature expressed via Eq. (5).
2.D. The J(3097)
Application of the GEM in accord with Figure 1, with x = c, seems reasonably
straight-forward, but it turns out to be problematic. However, when one sees
that the hadronic width of the J (3097), designated as simply the “J” henceforth,
given by the application of Eq. (1) in accord with Figure 1 with x = c, is
roughly sixteen times too large, as compared to experimental results, coupled
with the fact that the hadronic width of the Υ(1S) given by the application of
Eq. (1) in accord with Figure 1 with x = b is roughly sixteen times too small,
as compared with experimental results, it becomes obvious as to what physically
must transpire as regards both the J and the Υ(1S). Restricting the discussion to
the J for the time being, in what we call “the zeroth order approximation”, the
basic cc ∗ structure of the J must make a point-like transition to an ss∗ structure
of equal mass, whereupon one of the s quarks undergoes a spin flip to form the
associated resonance (see White (2009-J)). The point-like transition from cc ∗ to ss∗
is instantaneous, thus having no influence on the J’s width. Indeed, the resonance
does not even form until an s (or s∗ ) quark undergoes a spin flip. That the cc ∗ to ss∗
transition is necessary is quite understandable: The J is not massive enough for it to
be able to decay into hadrons via emission of two c quarks; hence, it must transition
to a quark pair of lesser bare mass each. The simplest possible assumption is that
the cc ∗ transitions to the quark pair type characterized by the next smallest mass,
viz., the s type. Nothing prevents the cc ∗ structure from decaying into leptons
(e+ e− and µ+ µ− ), however. It is found in White (2009-J), in fact, that in order for
both the hadronic width of the J and the leptonic width of the J as determined via
the GEM to match the results of experiment, (8/9)ths of the cc ∗ structure must
undergo a slightly “un-point-like” transition to ss∗ , described by a form factor,
f < 1, which, in turn, decays into both hadrons and leptons as per Eq. (1) and
Eq. (2), respectively, while (1/9)th of the original cc ∗ structure remains to decay
into leptons exclusively. We may picture the complete details of the J formation
and decay via the following two arrays of FDs, the first such array descriptive of
what we may now call “the first order approximation” to the width of the J, the
second such array descriptive of what we call “the second order approximation”,
which follows along the lines of White (2009-J).
In Figure 6 “l” represents a leptonic decay product, ξ2a represents the gluon
involved in a point-like transition from cc ∗ to ss∗ , and all other “ζ” designates
80
D. White
Figure 6a. Feynman Diagram Array Characterizing the Formation and
Decay of the J(3097) in First Order Approximation via the GEM.
should be understood from previous discussion. Transforming the schematic
representation of Figure 6 into the calculation of the full (hadronic plus leptonic)
width of the J in first order approximation, denoted as ΓJ -full-1 , proceeds as follows
(the factors of “2” in Eq. (7a), immediately in front of the factors “(α/2π)” take
into account muon pair production in accord with “e-µ universality”):
ΓJ -full-1 ≈ (8/9){(αs /2π)(10, 042)(2me )(mρ /mJ )3 (qs )4
+ 2(α/2π)(10, 042)(2me )(mρ /mJ )3 (qs )4 }
+ (1/9){2(α/2π)(10, 042)(2me )(m p /m j )3 (qc )4 }.
(7a)
Thus,
ΓJ -full-1 ≈ (8/9){(αs /2π)(10, 042)(2me )(776/3097)3 (1/81)
+ 2(α/2π)(10, 042)(2me )(776/3097)3 (1/81)}
+ (1/9){2(α/2π)(10, 042)(2me )(776/3097)3 (16/81)}.
The value of the strong coupling parameter at the J mass is given by
αs = 1.2[ln(3097/50)]−1 = 0.2908.
(7b)
Therefore,
ΓJ -full-1 ≈ (8/9){92.2491 Kev + 4.6298 Kev} + (1/9){74.0769 Kev}
≈ 94.35 Kev.
(7c)
GEM and the Υ(1S)
81
The value for ΓJ-full-l obtained via the first approximation of the GEM is a
match to experiment, as according to PDG (2009-M), the full width of the J
via experiment is (93.2 ± 2.1) Kev. As well, the hadronic width alone via the
first approximation of the GEM is a match to experiment (82.00 Kev via the GEM
vs. (81.7 ± 0.5) Kev via experiment (PDG (2009-M)); the leptonic width via the
first approximation of the GEM is 12.35 Kev, which is about 11% more than that
reported by the PDG currently (11.10 ± 0.16) Kev (PDG (2009-M)).
The first approximation assumes that (8/9)ths of the original cc ∗ state undergo
a point-like transition to an excited ss∗ state, leaving (1/9)th of the original
cc ∗ state to decay into leptons. A point-like transition is instantaneous, so it
has no effect on the width of the original construction (i.e., the J). In terms
of a form factor, f , a point-like transition is consistent with f = 1. As it is
difficult to see how any fraction of the original cc ∗ state could “know” to make an
instantaneous transition, leaving a remnant to do other things, we believe a second
order approximation, again, along the lines of White (2009-J) is in order. Our
reasoning is simply that, logically, we feel that there simply must be some type of
communication between the cc ∗ and ss∗ states before the cc ∗ to ss∗ transition takes
place in order for the proper remnant to consistently remain to decay into leptons.
Hence, we reason that f < 1 describes the cc ∗ to ss∗ transition. Statistically,
f = (1 − qs2 ) = (8/9) is necessary to describe the hadronic width of the J. Since
f is not appreciably different than 1, the leptonic width of the J, relative to the
first order approximation, will be mitigated slightly. The second order FD for the J
follows:
In Figure 6b f = (8/9) multiplies the entire array. Denoting the full width of
the J in second order approximation by Γ j-full-2 , we find in accord with Figure 6b:
ΓJ -full-2 ≈ (8/9) (αs /2π)(10, 042)(2me )3 (qs )4
+ 2(α/2π)(10, 042)(2me )(mρ /mJ )3 (qs )4
+ (1/9){2(α/2π)(10, 042)(2me )(mρ /mJ )3 (qc )4 } .
(7d)
Thus,
ΓJ -full-2 ≈ (8/9) (αs /2π)(10, 042)(2me )(776/3097)3(1/81)
+ 2(α/2π)(10, 042)(2me )(776/3097)3 (1/81)
+ (1/9){2(α/2π)(10, 042)(2me )(776/3097)3 (16/81)} .
Again, the value of the strong coupling parameter at the J mass is given by
Eq. (7b), viz.,
αs = 1.2[ln(3097/50)]−1 = 0.2908.
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D. White
Figure 6b. Feynman Diagram Array Characterizing the Formation and
Decay of the J(3097) in Second Order Approximation via the GEM.
Therefore,
ΥJ -full-2 ≈ (8/9)[92.2491][Kev + 4.6298 Kev + (1/9){74.0769 Kev}]
≈ 93.43 Kev.
The full width of the J under second order approximation is thus nearly an exact
match to experiment (93.4 Kev via the GEM vs. 93.2 Kev from PDG (2009-M)).
The hadronic width of the J is unchanged from first to second approximation; so,
it remains a match with experiment (82.0 Kev via the GEM vs. 81.7 Kev from PDG
(2009-M)). As well, the leptonic width of the J via the GEM (11.4 Kev) is now only
2.7% higher than that reported by the PDG ((11.1 ± 0.2) Kev).
2.E. The Υ(1S)
Analogous to the J, the Υ(1S), originally a bb∗ construction, must transition
to a cc ∗ excited state of the same mass as that of the bb∗ state in order to decay
into hadrons. Unlike the J, however, there is no reason to suspect that leptons
emerge from the bb∗ state. Hence, we assume that all types of Υ(1S) decays
ensue from the cc ∗ excited state. Corroborative evidence abounds in support of
such assumption, as we shall see, so let us proceed with the viewing of the two
FDs which depict the hadronic decay of the Υ(1S) and the leptonic decay of the
Υ(1S), respectively:
GEM and the Υ(1S)
83
Figure 7a. Basic Feynman Diagram for Υ(1S) Formation and Decay into
Hadrons via the GEM.
Figure 7b. Basic Feynman Diagram for Υ(1S) Formation and Decay into
Leptons via the GEM.
From Eq. (1) the hadronic width of the Γ(1S), denoted by ΓΥ-H , via the GEM
theoretical structure is given by:
ΓY -H ≈ (αs /2π)(10, 042)(2me )(mρ /mY )3 (qc )4
≈ (αs /2π)(10, 042)(2me )(776/9460)3 (16/81),
(8a)
where
αs = 1.2[ln(9460/50)]−1 = 0.2289.
(8b)
Hence,
ΓΥ−H ≈ 40.76 Kev.
(8c)
The PDG in the 2008 Meson Table (PDG (2008-M), p.119) reports the corresponding figure as
ΓΥ−H (P DG) = 49.99 Kev,
(8d)
a figure 23% higher than the GEM-theoretical result.
However, if we look at the leptonic width of the Υ(1S), denoted by ΓY -L ,
as derived via the GEM, we find from Eq. (2) (the right hand side of same
multiplied by “3” to take into account muon and tauon pairs in accord with “e-µ-τ
universality”) that
ΓY -L ≈ 3(α/2π)(10, 042)(2me )(mρ /mΥ )3 (qc )4
≈ 3(α/2π)(10, 042)(2me )(776/9460)3 (16/81).
(9a)
Hence,
ΓY -L ≈ 3.90 Kev,
(9b)
84
D. White
which represents a match to the PDG’s report from the same 2008 Meson Table of
ΓY -L (PDG) = (4.03 ± 0.14) Kev.
(9c)
Specific to the e+ e− partial width (ΓY -ee ), the GEM obviously determines ΓY -ee
≈ 1.30 Kev, while the PDG in the above-mentioned source (p. 119) states
ΓY -ee (PDG1 ) ≈ 1.34 Kev directly, but indirectly, in terms of its stated fractional
branching ratio on p.119, a different value is inferred, viz., ΓY -ee (PDG2 ) ≈
1.29 Kev. From the latter we infer that according to the PDG (2008-M), the
experimentally determined value for the e+ e− partial width of the Υ(1S) is
given by
ΓY -ee (PDG) = (1.31 ± 0.03) Kev,
(9d)
a match to that of the GEM, i.e.,
ΓY -ee ≈ 1.30 Kev.
(9e)
Herein (i.e., the match between Eq. (9d) and Eq. (9e)) lies the source of a
paradox that the hadronic width as given by the GEM (i.e., ∼ 41 Kev) is correct,
though it is so seriously discrepant with that reported by the PDG (i.e., 50 Kev).
The paradox unfolds as follows: In order to obtain the constant “B” in the general
expression for αs , once Λ was determined (see White (2008-R), Section 3; note
there, too, that in Eq. (6) on p. 547 the factor “α” is missing as the multiplier of
“(41/1.31)”), the assumption was made that, since the Υ(1S) exists well into the
realm of asymptotic freedom,
α/αs = (e+ e− partial width)/(hadronic partial width) as associated with
the Υ(1S).
In White (2008-R) we inserted ΓY -ee (PDG) = 1.31 Kev for the e+ e− partial
width, and for the hadronic partial width, we inserted the GEM-theoretical width,
i.e., ΓY -H ≈ 41 Kev. We then obtained the general relation,
αs = B[ln(9460/50]−1 = α(41/1.31),
(10)
from which we solved for “B” to obtain, B = 1.2.
In turn, as “B” is a multiplier on the right hand sides of all width calculations via
the GEM theory, and as all width calculations, as seen above, represent nearly exact
matches with experiment in all cases except as to the hadronic width of the Υ(1S),
it has been difficult to fathom the source of the disparity between ΓY -H = 41 Kev
and ΓY -H (PDG) = 50 Kev.
2.F. The T Meson
To address the T meson, thought to be a t t ∗ (where “t” represents the top
quark) state but never “discovered” to date, is quite speculative on our part,
GEM and the Υ(1S)
85
but we think it important to do so because the GEM provides a perfectly logical
reason as to why the T has yet to be “found”, i.e., unequivocally shown to exist
by experiment. Said reason is just the opposite of the prevailing view as to the
“invisibility” of the T , which is: “the T doesn’t last long enough for it to be found”.
In a sense such is true; after all, the b b∗ of the Υ(1S) transitions instantaneously to
a cc ∗ state according to the GEM, but the mass of the original bb∗ state is preserved
in the resulting cc ∗ state, thus allowing for the “finding” of a resonance at the
Υ(1S) mass. Assuming the T to act in like manner to the Υ(1S), the following FD
would apply as regards hadron production:
Figure 8. Basic Feynman Diagram for T Formation and Decay into
Hadrons via the GEM.
The hadronic width of the T , from Eq. (1) would be:
Γ T ≈ (αs /2π)(10, 042)(2me )(mρ /m T )3 (q b )4
≈ (αs /2π)(10, 042)(2me )(776/340000)3 (1/81),
(11a)
where
αs = 0.90[ln(340000/50)]−1 = 0.1020.
(11b)
(In Eq. (11b) the constant “1.2” in the expression for αs becomes “0.90” beyond
100000 Mev (see White (2010) and in Eq. (11a) q b = −1/3.)
Hence,
Γ T ≈ 0.024 Mev.
(11c)
Thus, we see that, contrary to the “convenient explanation” as to why the T has
not so far been observed, the T lives for a very long time (about 0.03 ps)! It’s
just that its width to mass ratio makes it impossible right now for the experimental
apparatus to pick up such a narrow signal amongst the “noise” inherent in the
energy background needed to produce the T .
2.G. The GEM-Derived αs
In a very detailed and comprehensive work (White (2010)), recently published
in the Journal of Interdisciplinary Mathematics, the GEM-derived strong coupling
parameter, αs (GEM), is shown to be valid over the entire range of energy
heretofore reachable by experiment, i.e., from essentially the hadron threshold
(∼270 Mev) to about twice the mass of the Z boson (∼2 [91,000 Mev]).
86
D. White
Furthermore, it is shown in White (2010) that “if αs (GEM) agrees with any
experiment designed to determine αs (the experiment performed at any given
energy) to within 10%, it is roughly 90% certain that said experiment will predict
the accepted value of αs (EXP; mz ) to within 2.5%”. In the above quote αs (EXP; mz )
represents the evolutionary value of αs extrapolated to the Z boson mass (mz )
based on the experimental result for αs . The converse is also true, i.e., “in order
for a given experiment to be able to accurately determine the accepted value of
αs (EXP; mz ), it must first agree with αs (GEM), at least at the 90% level at the
energy scale at which the experiment is conducted”. The GEM-derived value for αs
associated with the energy scale = mz (αs (GEM; mz )) is found in White (2010) to
be given by:
αs (GEM; mz ) = 0.121 ± 0.003,
(12a)
a figure inclusive of the currently accepted result (see (PDG (2004-C), p. 18), given
by:
αs (PDG; mz ) = 0.119 ± 0.002.
(12b)
Perhaps the most striking feature of αs (GEM) is that it retains its form, i.e.,
αs (GEM) = 1.2[ln(E/50 Mev)]−1
(13)
for any energy, E, from ∼270 Mev all the way to the Υ(1S) mass of 9460 Mev, while
functioning strikingly well, as we have seen, as a major constituent in the width
calculations of the ρ, the φ, the K ∗ (892), and the J(3097). Beyond 9460 Mev, the
scale factor in αs (GEM) retains its value of 50 Mev as the multiplicative factor of
“1.2” is allowed to go to its required high energy asymptotic value of “6π/21”
= “0.90” at E = mz (White (2010)). Thus, αs (GEM) is overall a very simple
function, yet very accurate essentially everywhere. As another example of such,
we cite Aguilar et al. (2004)), wherein on page 254, the authors put forth a value
for αs evaluated at the tauon mass (1777 Mev), such value claimed to be scheme
independent, it serving as a standard, therefore, to be employed in order to test
the reliability of four schemes therein introduced for obtaining αs . Their result,
signified therein as “αexpt
” is reported to be αexpt
= 0.340 ± .007, a good statistical
s
s
match to the GEM’s determination of the same entity of 0.336.
Now, as we have seen from Section 2.G, the constant “B” = “1.2” is derived in
part from basing the ratio of the experimental partial width, ΓY -ee (PDG), to the
GEM-theoretical hadronic width, ΓY -H , as equal to (α/αs ) evaluated at the Υ(1S)
mass. The Υ(1S), existing as it does well out into the realm of asymptotic freedom
must have (ΓΥ-ee /ΓY -H ) = (α/αs ); the FDs as constructed according to Figures 7a
and 7b demand such. Acceding to such demand leads, however, to the paradoxical
situation discussed in Section 2.E. Hence, of all the applications of the GEM, ΓY -H
as equal to 40.76 Mev is essentially the only GEM-derived quantity associated with
GEM and the Υ(1S)
87
anything from the ρ mass to beyond the Z mass that, apparently, “does not work”.
To “make it work” within the context of the GEM as described so far, “B” would
have to become “(1.2)(50/41)” = “1.46”, thus destroying utterly the plethora of
agreements with experiment outlined above. We address the problem as it stands
immediately below in Section 3.
3. A Postulated Additional Route in Υ(1S) Decay (2010)
There is, actually, a very simple, and at the same time a very plausible solution
to the paradox mentioned above in Section 2.E and Section 2.G, viz., we postulate
an additional route for Υ(1S) decay into hadrons, a route assumed not to have a
high probability of occurrence for the J or the other vector mesons of mass less than
that of the J. As the basis for the existence of the additional route available to the
Υ(1S), we point to the fact that there is roughly three times the energy spectrum
available to the Υ(1S) in its decay (9460 Mev worth) as compared to the next
lightest vector meson, i.e., the J (3097 Mev worth). With three times the energy
spectrum (as compared to the J) available to the Υ(1S), we think it plausible that
decays resulting in hadrons as products may be allowed to take place through the
bifurcation of the gluon emitted from the resonance state (or more simply stated:
via emission of two gluons), rather than what has heretofore been assumed in
accord with Figure 7a, in which a single gluon, ζ3a , converts to hadrons to mark
the final stage of the decay process. Specifically, we propose that, in addition to the
route as described immediately above, that a route exists in which ζ3a bifurcates
into two gluons, each of which then converts to hadrons. The FD associated with
the proposed additional route is seen immediately below.
Figure 9. Basic Feynman Diagram for Postulated Additional Route for
Υ(1S) Formation and Decay into Hadrons (h, h′ , h′′ , and h′′′ ) via the
GEM.
The additional route, which we denote as the “bifurcated gluon route for hadron
decay” (BGRHD), effectively adds αs times ΥY -H , or (0.2289) (40.76 Kev) =
9.33 Kev to the GEM-theoretical width of the Υ(1S). The reformulated situation
regarding the Υ(1S) may be summarized, therefore, as follows:
88
D. White
Denoting the partial width due to the BGRHD as ΓY -BGH , we have
ΓY -BGH = 9.33 Kev.
(14)
From Section 2.E we have
ΓY -H = 40.76 Kev
Also from Section 2.E we have
ΓY -L = 3.90 Kev
The net hadronic width of the Υ(1S) as per the GEM would now be given by given
by
ΓY -(H+BGH) (GEM2010) = 50.09 Kev,
(15)
which now represents a nearly perfect match to ΓY -H(PDG) = 49.99 Kev.
In addition the full width of the Υ(1S) as per the GEM would now be given by
ΓY -full (GEM2010) = 53.99 Kev,
(16)
which also represents a nearly perfect match to ΓY -full (PDG) = (54.02 ± 1.25) Kev.
With the addition of the BGRHD the calculation of “B” in the expression for
αs is uncompromised, while at the same time the major discrepancy between
the hadronic width of the Υ(1S) as determined via the GEM versus via the
methods engaged by the PDG is completely removed. For that reason we believe
the postulate as to the addition of the BGRHD is a viable one. In fact, if we
postulate that in addition to the BGRHD there is a companion route for leptons,
i.e., a bifurcated gluon route for lepton decay (BGRLD), whose FD is identical
to that of Figure 9, except that on the far right hand side of the diagram, each
“αs ” is replaced by “α” and “h, h′ , h′′ , and h′′′ ” are replaced by “l i+ , l i− , l +
j , and
l−
”,
respectively,
where
“i”
and
“
j”
denote
lepton
types
and
i
=
j
is
allowed,
j
(3.90 Kev/137.036) = 0.03 Kev would be added to ΓΥ-full (GEM2010) above, thus
bringing
ΓΥ-full (GEM2010) → 54.02 Kev,
(17)
i.e., the realization of an exact match to experiment.
4. Application of the GEM to the Υ(2S) (2010)
As a test of the basic theoretical structure thus far presented, we now seek to
apply the GEM to the calculation of the width of the Υ(2S). Guided by White
(2009-ψ), in which the companion to the J, i.e., the ψ(2S), was explored via the
GEM, we first note that according to PDG (2008-M) that the e+ e− partial width of
the Υ(2S), denoted by Γ20-ee (PDG), is given by
Γ20-ee (P DG) = (0.61 ± 0.01) Kev.
(18)
GEM and the Υ(1S)
89
Application of Eq. (2), assuming that 100% of the original bb∗ state associated
with the Υ(2S) transitions in point-like manner to a cc ∗ state (an unphysical
situation, as some bb∗ must remain in order to convert to the Υ(1S)) yields the
corresponding partial width as:
Γ20−ee (GEM) ≈ (α/2π)(10, 042)(2me )(mρ /mΥ(2S) )3 (qc )4 ,
(19a)
or
Γ20−ee (GEM) ≈ (α/2π)(10, 042)(2me )(776/10, 023)3 (16/81)
= 1.09 Kev.
(19b)
From here, it is not difficult to show that if ∼(4/9)ths of the bb∗ remain, some
to decay into lepton pairs, the others to make a transition to the Υ(1S), with
(5/9)ths of the original b b∗ state transitioning to a cc ∗ state, the experimental result
expressed by Eq. (18) can be met via the GEM. The situation is, in fact, in exact
analogy to the situation regarding the J. In “second approximation” regarding the
J recall that the form factor, f = (1 − qs2 ) = (8/9), was introduced as multiplying
the entire FD array associated with the second order approximation associated
with J decay (see Figure 6b). Here, we have a form factor, f ′ = (1 − qc2 ) = (5/9),
which we can, by analogy, set up to multiply the entire FD array characterizing the
Υ(2S) direct decay route to dissolution, as seen immediately below:
Figure 10. Feynman Diagram Array Characterizing the Formation and
Direct Decay to Dissolution of the Υ(2S) in Second Order Approximation
via the GEM.
90
D. White
We may thus, in complete analogy to Eq. (7b), arrive at the full partial width of
the decay of the Υ(2S) resulting in complete dissolution, denoted by Γ20-full (GEM),
as follows:
Γ20-full (GEM) ≈ (5/9) (αs /2π)(10, 042)(2me )(mρ /m y (2S))3 (qc )4
+ 3(α/2π)(10, 042)(2me)(mρ /m y(2S) )3 (qc )4
+ (4/9){3(α/2π)(10, 042)(2me )(mρ /m y(2S) )3 (q b )4 } .
The factor “3” in front of “(α/2π)” in two spots in the above equation takes into
account muon and tauon production in accord with “e-µ-τ universality”.
At the Υ(2S) mass we have
αs = 1.2[ln(10, 023/50)]−1 = 0.2264.
(20)
Hence,
Γ20-full (GEM) = (5/9)[33.90 Kev + 3.28 Kev + 0.09 Kev],
(21a)
which can be simplified to:
Γ20-full (GEM) = 18.83 Kev + 1.87 Kev = 20.70 Kev.
(21b)
We note that the hadronic part of Γ20-full (GEM) is 18.83 Kev and that the leptonic
part of Γ20-full (GEM) is 1.87 Kev, a figure representing a near match to the PDG’s
figure of (1.83 ± 0.03) Kev. Thus, similar to the case of the J, the leptonic width of
the Υ(2S) as determined via the GEM is about 2.2% higher than that reported by
the PDG.
In addition Γ20-full (GEM) = 20.70 Kev represents 64.7% of the full width
of the Υ(2S) as reported in PDG (2008-M) . . . a figure within ∼10% of the
experimentally determined fraction for same of 72.2% reported in the same source.
Because information is still somewhat sketchy as to the details of the Υ(2S) decay
(listed individual decay routes in PDG (2008-M) comprise only 33% of the full
width of the Υ(2S)), that {Γ20-full (GEM)/ΓΥ(2S)-full } is only ∼10% discrepant with
experiment at the present time is an encouraging result.
5. Concluding Remarks
We know of no other complete, comprehensive, QED-based theory of vector
mesons, besides the GEM theory of same. Nor do we know of a single complete,
comprehensive theory of the strong coupling parameter (αs ), besides that based
on the GEM. With the additions made to the GEM as seen in Section 3, the
GEM is now fully descriptive of all aspects of all known vector mesons (plus the
K ∗ (892)) to a very high degree of accuracy, and, as has been shown in White
(2010), in order for any determination of αs to be employed successfully (i.e.,
within 2.5%) as the basis for the determination of αs associated with the Z boson
energy, such determination must agree to within 10% with the GEM-theoretical
GEM and the Υ(1S)
91
result at the energy where αs is determined. Perhaps we should not be surprised at
such findings: After all, the GEM assumes that a known mechanism is universally
involved in the formation and decay of any vector meson and then proceeds along
the road of the calculation of associated Feynman Diagrams . . . straight along
the guidelines as laid out in QED, with the exception of, in the case of hadron
production, the substitution of αs for α in order to represent gluon absorption at
the hadron production vertex. Lepton production, of course, follows strictly the
guidelines laid out in QED in the limits of asymptotic freedom, generally accepted
to set in at E ∼ 3000 Mev. History has shown time and time again that if the
mechanism involved in a quantum mechanical process is well understood, the
calculation of the associated FDs will yield results which are very representative
of what is seen via reliable experiment. Our analysis of the GEM above indeed
yields nothing short of spectacular agreement with experiment on the assumption
that vector mesons arise by means of an electromagnetic, spin - spin interaction,
causing a spin flip of one of the quarks of a di-quark pair which has absorbed a
four-momentum propagator (as a gluon).
By contrast, in the literature having to do with theoretical calculation of vector
meson widths is apparent no comprehensive view of vector mesons at all. The
ρ is handled differently than the φ, which is handled differently than the J,
which, in turn, is handled differently than the Υ(1S). Indeed, as mentioned in
Section 2.F, the T is considered as “invisible” by the “physics establishment”. There
is prevalently not even the hint of a mechanism which would lead to a spin one
state in QCD-based work on vector mesons. Rather, the existence of the resonance
state is taken as the starting point for width calculations. Such stance throws
completely out the window, so to speak, any chance to include the formation stage
of vector mesons in the relevant calculations . . . and therefore the influence that
such stage has on them as to the width is completely lost. Close’s brilliant insight to
treat the gluon and the virtual photon as two aspects of the same entity (the fourmomentum propagator) in complementary fashion is also not widely employed
in the QCD literature. Such leads to such FDs as seen below as the prototype for
describing lepton production from Υ(1S) decay (from Hart et al. (2005)):
Figure 11. Basic Feynman Diagram for Υ(1S) Meson Decay into an
electron/positron pair proposed by Hart et al.
One will note that the FD of Figure 11 bears very little resemblance to the
corresponding figure (Figure 7b) describing e+ e− production via the GEM. In the
92
D. White
context of the GEM a cc ∗ state of mass 9460 Mev is what decays; in Figure 11 it
is a bb∗ state. Within the context of the GEM the four-momentum propagator,
ζ3a , couples to the resonance (on the left) with strength “1”; in Figure 11 the
corresponding coupling is αq2b = (1/9)α, because the four-momentum propagator
of Figure 11 is considered as a virtual photon (γ v ) all the way to the pair vertex.
In the words of the authors of Figure 11, “there is no exact mathematical result for
M ”, whereas the corresponding term (V) in the GEM is well known. In addition,
in their expression for the e+ e− partial width, the overall mass dependence
is [mY ]−2 (indicative of the e+ e− collision cross-section as associated with the
Υ(1S)), whereas the QED-based GEM demands a mass dependence of [mY ]−3 as
associated with any quantum system which spontaneously decays to dissolution
(see for example, Merzbacher (1970), p.486). Noteably missing is the term “qc4 ”,
which describes the basic, known interaction, derived from QED as essential for
the representation of the formation of the Υ(1S). Is it any wonder that, whereas
armed with a hand-held scientific calculator, via the GEM one may determine the
electron/positron partial width of the Υ(1S) in less than a minute, it takes the
authors of Figure 11 seventy-two full days using a single super computer processor
(or as they report, “18 hours of running . . . using 96 processors of the Sunfire
supercomputer”) to accomplish the same thing?
The GEM is “color blind”, i.e., there is no reference to quark color in
the GEM theory, whereas the literature is replete with such objects as “color
octets” contained in “Fock states”, though their effects “must be estimated” (PDG
(2004-C), p. 10). The GEM contains no radiative corrections as part of the width
calculations associated with any vector mesons. The PDG, on the other hand,
utilizes radiative corrections from QED in order to determine from experiment the
widths of the J and the Υ(1S), as they cannot be measured directly (PDG (2006W)). Our point is simply one of interest here: The GEM theoretical structure is
supremely simple, yet it produces the same results with far less “effort” than other,
purely formal methodology contained in QCD. Ockham’s Razor comes immediately
to mind: If one can determine the same quantity . . . the electron/positron partial
width of the Υ(1S), for example, utilizing far less input than and in less than
(1/103680)th the time in calculation (if only one super computer processor is
available) compared to another method, which method is the more viable? There
are complexities along either avenue, but the basic question to be answered
in pursuing the GEM is, “what Feynman Diagrams will fit the basic picture set
forth by QED?”, whereas it seems that to pursue the road devoid of the basic
electromagnetic process responsible for the formation of the spin one resonance,
the basic question is, “how many Feynman Diagrams and how many theoretical
constructs from QCD can we mash together . . . along with how much computer
time must we use . . . to force out a reasonable answer?” One avenue has a firm
base upon which to stand; the other . . . baseless, really . . . opts for machination,
GEM and the Υ(1S)
93
both of the mental and of the material types. The latter is wherefrom the moniker
“industrial physics” originates. The GEM certainly does not fall in such category.
If anything, the GEM is representative of what we perceive as a “lost art” . . . pure
QED at its core . . . proposed by names unknown and, alike, by names linked to
some degree of fame (Close and Dalitz, respectively, representative of such names)
30 years ago, when QCD was just getting its start. In closing we sincerely hope
that our review of the 30-year history of the GEM has shown it to be not only a
theory of a lost art, but a theory of great and beautiful art, as well.
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[15] PDG (2006-W), pdg.lbl.gov, Width Determinations of the Y States, p. 1, p. 2.
[16] D. White (2009-ψ), GEM and the ψ(2S), Journal of Applied Global Research 2(4),
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D. White, Department of Biological, Chemical, and Physical Sciences, Roosevelt
University, 430 S. Michigan Ave., Chicago, Illinois 60605, USA
E-mail:
[email protected]
Received
Accepted
January 26, 2010
November 20, 2010