核-核碰撞中长程关联与多重数涨落的贝叶斯方法
核理论
2022-01-21 v2 高能物理 - 唯象学
核实验
摘要
核-核碰撞中探测到的粒子数强烈依赖于碰撞的碰撞参数。因此，多重数涨落以及多重数的快度关联主要由碰撞参数涨落主导。我们提出了一种基于贝叶斯推断的方法，可稳健地重构固定碰撞参数下的涨落与关联。我们将该方法应用于ATLAS关于带电多重数与横能分布的实验数据。我们认为在大快度处的多重数涨落小于中心快度附近。我们提出了简单的新型分析，以确认这一效应。
引用
@article{arxiv.2108.03471,
title = {Bayesian approach to long-range correlations and multiplicity fluctuations in nucleus-nucleus collisions},
author = {Kianusch Vahid Yousefnia and Atharva Kotibhaskar and Rajeev Bhalerao and Jean-Yves Ollitrault},
journal= {arXiv preprint arXiv:2108.03471},
year = {2022}
}
备注
13 pages, 11 figures; v2: published version with some added explanations and rephrasing of our presentation, especially in Part II. Code for 2D Bayesian reconstruction of ATLAS data is included as ancillary file