Bochum 1998 – scientific programme
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HK: Hadronen und Kerne
HK 15: Hadronic Probes II, Nucleon-Nucleon Interaction
HK 15.4: Talk
Monday, March 16, 1998, 18:30–18:45, C
Measurements of Spin Correlation Coefficients in pp Elastic Scattering between 200 and 450 MeV: Analysis, Results and Comparison to Theory — •F. Rathmann1,2, W. Haeberli1, B. Lorentz1, T. Wise1, W.A. Dezarn3, J. Doskow3, M. Dzemidzic3, J.G. Hardie3, H.O. Meyer3, R.E. Pollock3, B. von Przewoski3, T. Rinckel3, F. Sperisen3, and P.V. Pancella4 — 1University of Wisconsin-Madison, Department of Physics, 1150 University Avenue, Madison, WI 53706, USA — 2now at: Physikalisches Institut II der Universit"at Erlangen-N"urnberg, Erwin-Rommel-Str. 1, D-91058 Erlangen, Germany — 3Indiana University Cyclotron Facility, Bloomington, Indiana 47405 — 4Western Michigan University, Kalamazoo, Michigan 49008
Angular distributions of spin correlation parameters Axx, Ayy, Axz and analyzing power Ay have been measured between 7∘ and 90∘ CM for eight energies between 200 and 450 MeV. The measurements were carried out with the Wisconsin/IUCF polarized hydrogen gas target in the Indiana Cooler Ring. The statistical errors are of the order of 0.02 per angle bin for the spin correlation parameters (0.005 for Ay). An absolute calibration of the beam polarization at 200 MeV is known from the precisely measured analyzing power in a previous experiment carried out by the PINTEX collaboration [1]. The results will be presented and compared to predictions from potential model calculations and NN partial wave analyses.
[1] W. Haeberli et al., Phys. Rev. C 55, 97 (1997).