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Excitation functions of the analyzing power in elastic proton-proton scattering from 0.45 to 2.5 GeV |
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| Authors: | M Altmeier F Bauer J Bisplinghoff K Büßer M Busch T Colberg L Demirörs H P Engelhardt P D Eversheim K O Eyser O Felden R Gebel M Glende J Greiff F Hinterberger E Jonas H Krause T Lindemann J Lindlein B Lorentz R Maier R Maschuw A Meinerzhagen D Prasuhn H Rohdjeß D Rosendaal P von Rossen N Schirm V Schwarz W Scobel H -J Trelle K Ulbrich E Weise A Wellinghausen R Ziegler |
| Institution: | (1) Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, D-53115 Bonn, Germany;(2) Institut für Experimentalphysik, Universität Hamburg, D-22761 Hamburg, Germany;(3) Institut für Kernphysik, Forschungszentrum Jülich, D-52425 Jülich, Germany |
| Abstract: | Excitation functions AN(plab, c.m.) of the analyzing power in elastic proton-proton scattering have been measured in an internal target experiment at the Cooler Synchrotron COSY with an unpolarized proton beam and a polarized atomic hydrogen target. Data were taken continuously during the acceleration and deceleration for proton kinetic energies Tlab (momenta plab) between 0.45 and 2.5 GeV (1.0 and 3.3 GeV/c) and scattering angles 30 °  c.m. 90°. The results provide excitation functions and angular distributions of high precision and internal consistency. The data can be used as calibration standard between 0.45 and 2.5 GeV. They have significant impact on phase shift solutions, in particular on the spin triplet phase shifts between 1.0 and 1.8 GeV. |
| Keywords: | 25 40 Cm Elastic proton scattering 13 75 Cs Nucleon-nucleon interactions (including antinucleons deuterons etc ) 24 70 +s Polarization phenomena in reactions 21 30 -x Nuclear forces |
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