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James Sowinski

Sowinski

Senior Research Scientist

B.S., University of Wisconsin, Madison, 1977.
Ph.D., University of Wisconsin, Madison, 1984.

Phone: IUCF 127 (812)855-9365
Email: sowinski@indiana.edu

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My primary field of research is experimental nuclear physics. Within this field I specialize in investigations of polarization effects in nuclear scattering, particularly in few nucleon systems and light nuclei. Topics of my past publications have included: nucleon-nucleon elastic scattering, charge symmetry violation, radiative capture in few nucleon systems and the spin structure of 3He. I also maintain an interest in the technology for making precision polarization measurements, such as polarized targets and ion sources, polarization standards and new techniques in storage rings and have published in these areas.

I along with some of my colleagues here at IU have recently joined the STAR collaboration at RHIC. The main goal of the experiment is to find the quark gluon plasma. We are interested in the high energy spin physics that will be done with the detector, particularly measuring the fraction of the spin of a proton carried by gluons.

Selected Publications:
  • Measurement of Quasielastic 3He(p,pN) Scattering from Polarized 3He and the Three Body Ground State Spin Structure, M.A. Miller et al., Phys. Rev. Lett. 74, 502 (1995).
  • A Spin Refrigerator Polarized Target for Nuclear Physics Experiments, J. Sowinski and L.D. Knutson, Nucl. Inst. and Methods A355, 242 (1995).
  • Measurements of Spin Observables using a Storage Ring with Polarized Beam and Polarized Internal Gas Target, K. Lee et al., Phys. Rev. Lett. 70, 738 (1993).
  • Spin Correlation and Analyzing Power Measurements for Neutron-Proton Radiative Capture at Tn=183 MeV. S.F. Pate et al., Phys. Rev. Lett. 70, 3205 (1993).
  • Charge Symmetry Breaking in n-p Scattering at 183 MeV, S.E. Vigdor et al., Phys. Rev. C 46, 410 (1992).
  • Determination of Analyzing Powers for 189 MeV proton Elastic Scattering on 12C, S.W. Wissink et al., Phys. Rev. C 45, R1 (1992).
  • Charge Symmetry Violation in Neutron-Proton Elastic Scattering at En=183 MeV, L.D. Knutson et al., Phys. Rev. Lett. 66, 1410 (1991).
  • A Measurement of the Spin Correlation Parameter Cnn in n-p Elastic Scattering at 181 MeV, J. Sowinski et al., Phys. Lett. 199B, 341 (1987).
  • On the Determination of the Deuteron Asymptotic D- to S-State Wave Function Ratio by the Pole-Extrapolation Method: Truncation Errors, D.D. Pun Casavant, J. Sowinski and L.D. Knutson, Phys. Lett. 154B, 6 (1985).