A study of event-by-event fluctuations in relativistic heavy-ion collisions

被引：9

作者：

Ahmad, Shakeel ^{[1
]}

Khan, M. M. ^{[1
]}

Khan, Shaista ^{[1
]}

Khatun, A. ^{[1
]}

Irfan, M. ^{[1
]}

机构：

[1] Aligarh Muslim Univ, Dept Phys, Aligarh 202002, Uttar Pradesh, India

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS E | 2014年 / 23卷 / 11期

关键词：

Relativistic heavy-ion collisions; event-by-event fluctuations; clusterization; intermittency; RAPIDITY DENSITIES; INTERMITTENCY; GEV/C; DEPENDENCE; BEHAVIOR; AU;

D O I：

10.1142/S0218301314500657

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：

A method for selecting events with densely populated narrow regions or spikes in a given data sample is discussed. Applying this method to 200A GeV/c S-32-AgBr and S-32-Gold collision data, a few events having "hot regions" are chosen for further analysis. The finding reveals that a systematic study of particle density fluctuations, if carried out in terms of scaled factorial moments, and the results are compared with those for the analysis of correlation free Monte Carlo events, would be useful in identifying events with large dynamical fluctuations. Formation of clusters or jet-like structure in multihadronic final states in the selected spiky events is also looked into and compared with the predictions of AMPT and independent emission hypothesis models by carrying out Monte Carlo simulation. The findings suggest that clustering or jet-like algorithm adopted in the present study may also serve as an important tool for triggering different classes of events.

引用

页数：18

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