Mark Manley

Kent State University, Physics, Emeritus

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I earned my Ph.D. in 1981 from the University of Wyoming. My dissertation research was performed at the Clinton P. Anderson Meson Physics Facility (LAMPF) in Los Alamos, New Mexico. After receiving the Ph.D., I enjoyed postdoctoral research appointments at Virginia Polytechnic Institute and State University (1981-84) and at Lawrence Livermore National Laboratory (1984-86). I joined the Department of Physics at Kent State University in 1986 and retired in 2020. I served over 30 years as the Undergraduate Coordinator in the Department of Physics at Kent State University. Over my career, I did research at a variety of nuclear physics laboratories including the MIT-Bates Linear Accelerator Center, Indiana University Cyclotron Facility (IUCF), Thomas Jefferson National Laboratory (JLab), TRIUMF in Vancouver, BC, Brookhaven National Laboratory (BNL), and the Mainz Microtron (MAMI) in Mainz, Germany. My primary research area involved carrying out studies of baryon spectroscopy by performing multichannel partial-wave analyses of scattering reactions induced by pions, photons, or kaons.
Supervisors: Ph.D. supervisor - Glen Rebka, Postdoctoral supervisor at Virginia Tech - Richard "Dick" Arndt, and Postdoctoral supervisor at Lawrence Livermore National Laboratory - Barry Berman

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Investigations of Baryon Spectroscopy via Electromagnetic and Hadronic Scattering (Final Report, May 1, 2019 to August 15, 2021)

Resolving Difficulties of a Single-Channel Partial-Wave Analysis

Bulletin of the American Physical Society, 2016

State University-The goal of our research is to determine better the properties of nucleon resona... more State University-The goal of our research is to determine better the properties of nucleon resonances using techniques of a global multichannel partial-wave analysis. Currently, many predicted resonances have not been found, while the properties of several known resonances are relatively uncertain. To resolve these issues, one must analyze many different reactions in a multichannel fit. Other groups generally approach this problem by generating an energy-dependent fit from the start. This is a fit where all channels are analyzed together. The method is powerful, but due to the complex nature of resonances, certain model-dependent assumptions have to be introduced from the start. The current work tries to resolve these issues by first generating single-energy solutions in which experimental data are analyzed in narrow energy bins. The single-energy solutions can then be used to constrain the energy-dependent solution in a comparatively unbiased manner. Our work focuses on adding three new single-energy solutions into the global fit. These reactions are γp → ηp, γn → ηn, and γp → K + Λ. During this talk, I will discuss the difficulties of this approach, our methods to overcome these difficulties, and a few preliminary results.

Mark Manley

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