{"title":"在大型强子对撞机上利用多粒子方位相关性探索核结构","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":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"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\":null,\"pages\":null},\"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}","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}
Exploring nuclear structure with multiparticle azimuthal correlations at the LHC
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.