Longitudinal Structure of Quark-Gluon Plasma Unveiled Through Nuclear Deformations

Fuente: arXiv
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Main Authors: Zhang, Chunjian, Huang, Shengli, Jia, Jiangyong
Format: Preprint
Published: 2024
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_version_ 1866914796152029184
author Zhang, Chunjian
Huang, Shengli
Jia, Jiangyong
author_facet Zhang, Chunjian
Huang, Shengli
Jia, Jiangyong
contents The study of quark-gluon plasma (QGP) is hindered by our limited understanding of its initial conditions, particularly its longitudinal structure. We propose a novel approach that entails analyzing collisions involving nuclei of similar masses but different deformations. This strategy allows us to vary the initial conditions and collective expansion of the QGP, while minimizing the influence of non-flow correlations. Using a dynamical transport model, we have for the first time extracted the complete longitudinal structure of elliptic flow ($v_2$). Our findings reveal that although deformation significantly enhances the overall magnitude of $v_2$, it does not alter its longitudinal profile. This approach not only enables the separation of the rapidity dependence of flow from its rapidity decorrelations but also prompts further investigation into other nuclear structural features, such as nuclear skin thickness, to advance our understanding of the QGP's initial conditions.
format Preprint
id arxiv_https___arxiv_org_abs_2405_08749
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Longitudinal Structure of Quark-Gluon Plasma Unveiled Through Nuclear Deformations
Zhang, Chunjian
Huang, Shengli
Jia, Jiangyong
Nuclear Theory
High Energy Physics - Phenomenology
Nuclear Experiment
The study of quark-gluon plasma (QGP) is hindered by our limited understanding of its initial conditions, particularly its longitudinal structure. We propose a novel approach that entails analyzing collisions involving nuclei of similar masses but different deformations. This strategy allows us to vary the initial conditions and collective expansion of the QGP, while minimizing the influence of non-flow correlations. Using a dynamical transport model, we have for the first time extracted the complete longitudinal structure of elliptic flow ($v_2$). Our findings reveal that although deformation significantly enhances the overall magnitude of $v_2$, it does not alter its longitudinal profile. This approach not only enables the separation of the rapidity dependence of flow from its rapidity decorrelations but also prompts further investigation into other nuclear structural features, such as nuclear skin thickness, to advance our understanding of the QGP's initial conditions.
title Longitudinal Structure of Quark-Gluon Plasma Unveiled Through Nuclear Deformations
topic Nuclear Theory
High Energy Physics - Phenomenology
Nuclear Experiment
url https://arxiv.org/abs/2405.08749