PREASYMPTOTICS OF COLOR TRANSPARENCY

被引：37

作者：

KOPELIOVICH, BZ ^{[1
]}

ZAKHAROV, BG ^{[1
]}

机构：

[1] MV LOMONOSOV STATE UNIV,INST NUCL PHYS,HIGH ENERGY PHYS LAB,MOSCOW 117234,USSR

来源：

PHYSICS LETTERS B | 1991年 / 264卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(91)90374-Y

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Available experimental data on quasifree hadron scattering on nuclei do not achieve the asymptotic regime where both the transverse momentum and the energy are high enough to make a nucleus transparent in accordance with QCD expectations. We analyzed 40 GeV data on charge-exchange pion scattering on nuclei at moderate transferred momenta and found a clear signal of the colour transparency. We investigated also the influence of varying the size of the hadron during propagation through a nucleus at moderate energies within a quantum-mechanical approach, and compare the results with data on pp quasielastic scattering at CM 90-degrees. We argue also that the colour transparency can exceed unity due to a short-range modulation of the hadron-nucleon scattering amplitude with nuclear medium.

引用

页码：434 / 439

页数：6

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