All Questions
Tagged with weak-interaction bosons
17 questions
2
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1
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59
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Why do heavy bosons have less range?
Why is it that there's a precise relationship between the mass of a mediator particle and its range? Because mass shouldn't directly affect decay time, right?
- 379
0
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1
answer
96
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$Z$ bosons coupling to other $Z$ bosons
I'm learning about Higgs boson production at the moment. One way that it's produced is by 'vector boson associated production' or VH, which has this Feynman diagram:
What I'm wondering is: how can $Z$...
- 105
2
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3
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1k
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Why are interactions mediated by the $W$ bosons and the $Z$ bosons classified as a single type of force when they are so different?
We always hear of 4 Forces or interactions, i.e. the Strong Force, Electromagnetic Force, Weak Force and Gravity. Each force has its mediating Bosons, i.e. gluons for Strong Force, photons for ...
- 21
0
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1
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246
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Why is $W$ boson decay into more than 2 particles not possible?
I am studying hadronic decay of the $W^-$ boson. I am aware that the decay into quarks from different generations is not possible and that charge as well as the total angular momentum have to be ...
- 173
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0
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122
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Where does the Energy for $W$ and $Z$ Boson Emission come from?
I understand that the Weak interaction is mediated by the $W$ and $Z$ bosons, and that their huge masses are the reason for the Weak interaction's short range.
However, I cannot find an explanation ...
- 393
2
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1
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461
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Why does the weak interaction ineract solely with left handed particles?
So let me elaborate, my problem is that I don't fully understand why the weak interaction is a chiral theory - I would like an answer with the Lagrange density and the Higgs field. I also want to know ...
2
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1
answer
2k
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Why cannot the $W$ and $Z$ bosons decay into a pair of quarks where one is a top or anti-top quark?
Now I can understand its unlikely to see a $W$ or $Z$ boson decay into a pair of quarks that involve a top or anti-top quark simply because of the amount of energy it would require, but find it well ...
- 659
0
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0
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50
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(In a beta decay) Between what particles are W bosons exchanged?
According to what I've learned, when two electrons repel each other, photons are exchanged between the electrons, and gluons are exchanged between quarks in a nucleus. However, in beta decay, it seems ...
- 471
1
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1
answer
80
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$W^-$ behavior in Neutron decay
Why does $W^-$ always decay into electron and anti-neutrino in neutron decay? Why doesn't the $W^-$ particle decay into quark-antiquark pair?
0
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1
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232
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When a Z boson decays into a particle/antiparticle pair, do those particles instantly annihilate each other?
If you look at a Feynman diagram of neutrino-electron scattering, there is the mediation of force by means of a virtual Z boson, and the product of this interaction is just the neutrino and electron ...
- 87
7
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1
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583
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What happens during a weak interaction?
For e.g. during $\beta^-$ decay a $W^- $ boson is emitted changing an up quark to a down quark. This seems very weird to me as it looks like that up quark is not interacting with some other particle ...
- 355
0
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0
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44
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Does the field (force-carrying) of a gluon or boson have a magnetic-like shape? Not spherical
The challenge of force-carrying boson is that many experiments generate results that are not consistent. Hence, quantum statistics.
It is established that things like 'strong nuclear interaction/...
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5
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3
answers
894
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Why do weak interactions exclude gluons?
Weak interactions seem the most universal after gravitation. A very few particles avoid them, only the photon and gluon, plus right leptons. The photon, however, is a part of the electroweak ...
- 12.9k
6
votes
1
answer
572
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Can quarks of different generations enter a $Z$ boson vertex?
Reading through my particle physics book (Thomson's "Modern Particle Physics"), it appears that when calculating the possible decays of the $Z$ boson, we do not consider decays such as $Z\rightarrow u ...
- 2,302
1
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1
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812
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Does the top quark decay into an on-shell W boson?
Considering that the top/truth quark is the only quark with higher mass than the massive bosons, is the W boson in its decay different than the off-shell bosons that mediate the weak decay of other ...
- 413
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0
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188
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Why does the weak interaction not conserve the flavour quantum number? [duplicate]
The weak interaction, in contrast to the strong and electromagnetic, is the mediator of the decay of the strange quark, purely because the weak interaction is 'allowed' to break conservation of ...
- 107
3
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0
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356
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Can the mass of longitudinal and transverse W bosons be measured separately?
Some higgsless unified models of particle physics predict that the mass of longitudinally polarized W bosons and the mass of transversely polarized W bosons are different.
In those models, a ...
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