Modelling nucleon-nucleon scattering above 1 GeV

被引：16

作者：

Eyser, KO ^{[1
]}

Machleidt, R

Scobel, W

机构：

[1] Univ Idaho, Dept Phys, Moscow, ID 83844 USA

[2] Univ Hamburg, Inst Expt Phys, D-22761 Hamburg, Germany

来源：

EUROPEAN PHYSICAL JOURNAL A | 2004年 / 22卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1140/epja/i2004-10014-0

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

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.

引用

页码：105 / 117

页数：13

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