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Backward asymmetry measurements in the elastic pion-proton scattering at resonance energies
- Publication Year :
- 2008
- Publisher :
- arXiv, 2008.
-
Abstract
- The asymmetry parameter P was measured for the elastic pion-proton scattering in the very backward angular region of theta_cm ~ 150-170^o at several pion beam energies in the invariant mass range containing most of the pion-proton resonances. The general goal of the experimental program was to provide new data for partial wave analyses in order to resolve their uncertainties in the baryon resonance region to allow the unambiguous baryon spectrum reconstructions. Until recently the parameter P was not measured in the examined domain that might be explained by the extremely low cross section. At the same time the predictions of various partial wave analyses are far from agreement in some kinematic areas and specifically those areas were chosen for the measurements where the disagreement is most pronouncing. The experiment was performed at the ITEP U-10 proton synchrotron, Moscow, by the ITEP-PNPI collaboration in the latest 5 years.<br />Comment: 6 pages, 5 figures. to be submitted to the European Physical Journal
- Subjects :
- Physics
Nuclear and High Energy Physics
Particle physics
Scattering
media_common.quotation_subject
Nuclear Theory
Resonance
Proton Synchrotron
FOS: Physical sciences
Asymmetry
High Energy Physics - Experiment
Nuclear physics
Baryon
Cross section (physics)
High Energy Physics - Experiment (hep-ex)
Pion
Invariant mass
Nuclear Experiment
media_common
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....9386498e39cfb749a6a0c248674fc3a7
- Full Text :
- https://doi.org/10.48550/arxiv.0810.1143