Color fluctuation effects in proton-nucleus collisions

被引：62

作者：

Alvioli, M. ^{[1
,2
]}

Strikman, M. ^{[3
]}

机构：

[1] European Ctr Theoret Studies Nucl Phys & Related, ECT, I-38123 Villazzano, TN, Italy

[2] CNR IRPI, I-06128 Perugia, Italy

[3] Penn State Univ, Davey Lab 104, University Pk, PA 16803 USA

来源：

PHYSICS LETTERS B | 2013年 / 722卷 / 4-5期

关键词：

HADRONS; CONFIGURATIONS; SCATTERING;

D O I：

10.1016/j.physletb.2013.04.042

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Color fluctuations in hadron-hadron collisions are responsible for the presence of inelastic diffraction and lead to distinctive differences between the Gribov picture of high energy scattering and the low energy Glauber picture. We find that color fluctuations give a larger contribution to the fluctuations of the number of wounded nucleons than the fluctuations of the number of nucleons at a given impact parameter. The two contributions for the impact parameter averaged fluctuations are comparable. As a result, standard procedures for selecting peripheral (central) collisions lead to selection of configurations in the projectile which interact with smaller (larger) than average strength. We suggest that studies of pA collisions with a hard trigger may allow to observe effects of color fluctuations. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：347 / 354

页数：8

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