The Impact of the Fragmentation Processes of Spectators on the Centrality Determination in Heavy-Ion Collisions

IF 0.6 4区物理与天体物理 Q4 PHYSICS, PARTICLES & FIELDS

Physics of Particles and Nuclei Pub Date : 2024-08-18 DOI:10.1134/s1063779624700837

I. Segal, A. Taranenko

引用次数: 0

Abstract

A heavy-ion collision experiment has a wide range of physical observables that are dependent on the initial geometry. Centrality is used to describe the initial geometry of collisions in experiments. Spectator fragments, or pieces of the colliding nuclei that were not involved in the collision, can be used to determine centrality. In this work, we discuss how processes of spectator fragmentation may impact the centrality determination procedure. These effects are demonstrated using the DCM-QGSM-SMM model, which realistically reproduces fragmentation processes, and the published results of the NA61/SHINE experiment.

Abstract Image

查看原文本刊更多论文

旁观者的碎裂过程对重离子碰撞中心性判定的影响

摘要重离子碰撞实验的物理观测值范围很广，这些观测值取决于初始几何形状。中心性用于描述实验中碰撞的初始几何形状。旁观者碎片或未参与碰撞的碰撞核碎片可用于确定中心性。在这项工作中，我们讨论了旁观者碎片的过程如何影响中心性确定程序。我们使用 DCM-QGSM-SMM 模型（该模型真实地再现了碎裂过程）和 NA61/SHINE 实验的公开结果来证明这些影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Physics of Particles and Nuclei 物理-物理：粒子与场物理

CiteScore

1.00

自引率

0.00%

发文量

116

审稿时长

6-12 weeks

期刊介绍： The journal Fizika Elementarnykh Chastits i Atomnogo Yadr of the Joint Institute for Nuclear Research (JINR, Dubna) was founded by Academician N.N. Bogolyubov in August 1969. The Editors-in-chief of the journal were Academician N.N. Bogolyubov (1970–1992) and Academician A.M. Baldin (1992–2001). Its English translation, Physics of Particles and Nuclei, appears simultaneously with the original Russian-language edition. Published by leading physicists from the JINR member states, as well as by scientists from other countries, review articles in this journal examine problems of elementary particle physics, nuclear physics, condensed matter physics, experimental data processing, accelerators and related instrumentation ecology and radiology.