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- Title
ELASTIC PROTON-PROTON SCATTERING AT GEV ENERGIES: ANALYZING POWERS A<sub>NN</sub>, A<sub>SS</sub>, AND SPIN CORRELATION PARAMETERS ANN, Ass, AND ASL.
- Authors
Hinterberger, F.; Eyser, K. O.
- Abstract
The analyzing powers AN and spin correlation parameters ANN, ASS, and ASL of the elastic proton-proton scattering have been measured with an internal polarized atomic beam target at the cooler synchrotron COSY. Excitation functions were taken continuously during the acceleration and deceleration of the internal beam for kinetic energies ranging between 0.45 and 2.5 GeV and scattering angles 30° ⩽ ϴc.m ⩽ 90°. The analyzing power excitation functions provide a new polarization standard in the GeV region. The spin correlation data on ASS disagree strikingly with existing phase shift solutions. The addition of the new polarization data to the world database removes some of the ambiguities in the phase shift solutions and the direct reconstruction of scattering ambiguities. The data are compared with a recent extension of a meson-exchange potential model to higher energies.
- Subjects
PROTONS; ATOMS; BARYONS; PARTICLES (Nuclear physics); SYNCHROTRONS; PARTICLE accelerators
- Publication
International Journal of Modern Physics A: Particles & Fields; Gravitation; Cosmology; Nuclear Physics, 2005, Vol 20, Issue 8/9, p1959
- ISSN
0217-751X
- Publication type
Article