Modelling nucleon-nucleon scattering above 1 GeV

Motivated by the recent measurement of proton-proton spin-correlation parameters up to 2.5 GeV laboratory energy, we investigate models for nucleon-nucleon (NN) scattering above 1 GeV. Signatures for a gradual failure of the traditional meson model with increasing energy can be clearly identified. S...

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Bibliographic Details
Published inarXiv.org
Main Authors Eyser, K O, Machleidt, R, Scobel, W, the EDDA Collaboration
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 01.11.2003
Subjects
Correlation analysis
Dependence
Nucleon-nucleon scattering
Scattering
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Summary:Motivated by the recent measurement of proton-proton spin-correlation parameters up to 2.5 GeV laboratory energy, we investigate models for nucleon-nucleon (NN) scattering above 1 GeV. Signatures for a gradual failure of the traditional meson model with increasing energy can be clearly identified. Since spin effects are large up to tens of GeV, perturbative QCD cannot be invoked to fix the problems. We discuss various theoretical scenarios and come to the conclusion that we do not have a clear phenomenological understanding of the spin-dependence of the NN interaction above 1 GeV.
ISSN:2331-8422
DOI:10.48550/arxiv.0311002