Initial-state fluctuations in collisions between light and heavy ions

被引：51

作者：

Welsh, Kevin ^{[1
]}

Singer, Jordan ^{[1
]}

Heinz, Ulrich ^{[1
]}

机构：

[1] Ohio State Univ, Dept Phys, 174 W 18th Ave, Columbus, OH 43210 USA

来源：

PHYSICAL REVIEW C | 2016年 / 94卷 / 02期

关键词：

RANGE ANGULAR-CORRELATIONS; NONLINEAR GLUON EVOLUTION; COLOR GLASS CONDENSATE; P-PB COLLISIONS; LONG-RANGE; PPB COLLISIONS; PROTON; DEPENDENCE; NUCLEI; SIDE;

D O I：

10.1103/PhysRevC.94.024919

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：

In high-energy collisions involving small nuclei (p + p or x + Au collisions where x = p, d, or He-3) the fluctuating size, shape, and internal gluonic structure of the nucleon is shown to have a strong effect on the initial size and shape of the fireball of new matter created in the collision. A systematic study of the eccentricity coefficients describing this initial fireball state for several semirealistic models of nucleon substructure and for several practically relevant collision systems involving small nuclei is presented. The key importance of multiplicity fluctuations in such systems is pointed out. Our results show large differences from expectations based on conventional Glauber model simulations of the initial state created in such collisions.

引用

页数：17

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