{"title":"Exploring nuclear structure with multiparticle azimuthal correlations at the LHC","authors":"ALICE Collaboration","doi":"arxiv-2409.04343","DOIUrl":null,"url":null,"abstract":"Understanding nuclear structure provides essential insights into the\nproperties of atomic nuclei. In this paper, details of the nuclear structure of\n$^{\\rm 129}$Xe, such as the quadrupole deformation and the nuclear diffuseness,\nare studied by extensive measurements of anisotropic-flow-related observables\nin Xe$-$Xe collisions at a center-of-mass energy per nucleon pair $\\sqrt{s_{\\rm\nNN}} = 5.44$ TeV with the ALICE detector at the LHC. The results are compared\nwith those from Pb$-$Pb collisions at $\\sqrt{s_{\\rm NN}} = 5.02$ TeV for a\nbaseline, given that the $^{\\rm 208}$Pb nucleus is not deformed. Furthermore,\ncomprehensive comparisons are performed with a state-of-the-art hybrid model\nusing IP-Glasma+MUSIC+UrQMD. It is found that among various\nIP-Glasma+MUSIC+UrQMD calculations with different values of nuclear parameters,\nthe one using a nuclear diffuseness parameter of $a_0=0.492$ and a nuclear\nquadrupole deformation parameter of $\\beta_2=0.207$ provides a better\ndescription of the presented flow measurements. These studies represent an\nimportant step towards a thorough exploration of the imaging power of nuclear\ncollisions at ultrarelativistic energy and the search for the imprint of\nnuclear structure on various flow observables in heavy-ion collisions at the\nLHC. The findings demonstrate the potential of nuclear structure studies at the\nTeV energy scale and highlight that the LHC experiments can complement existing\nlow-energy experiments on nuclear structure studies.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":"32 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Nuclear Experiment","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.04343","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Understanding nuclear structure provides essential insights into the
properties of atomic nuclei. In this paper, details of the nuclear structure of
$^{\rm 129}$Xe, such as the quadrupole deformation and the nuclear diffuseness,
are studied by extensive measurements of anisotropic-flow-related observables
in Xe$-$Xe collisions at a center-of-mass energy per nucleon pair $\sqrt{s_{\rm
NN}} = 5.44$ TeV with the ALICE detector at the LHC. The results are compared
with those from Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV for a
baseline, given that the $^{\rm 208}$Pb nucleus is not deformed. Furthermore,
comprehensive comparisons are performed with a state-of-the-art hybrid model
using IP-Glasma+MUSIC+UrQMD. It is found that among various
IP-Glasma+MUSIC+UrQMD calculations with different values of nuclear parameters,
the one using a nuclear diffuseness parameter of $a_0=0.492$ and a nuclear
quadrupole deformation parameter of $\beta_2=0.207$ provides a better
description of the presented flow measurements. These studies represent an
important step towards a thorough exploration of the imaging power of nuclear
collisions at ultrarelativistic energy and the search for the imprint of
nuclear structure on various flow observables in heavy-ion collisions at the
LHC. The findings demonstrate the potential of nuclear structure studies at the
TeV energy scale and highlight that the LHC experiments can complement existing
low-energy experiments on nuclear structure studies.