{"title":"Imaging the structure of atomic nuclei in high-energy nuclear collisions from STAR experiment","authors":"Chunjian Zhangfor the STAR Collaboration","doi":"arxiv-2409.09599","DOIUrl":null,"url":null,"abstract":"In relativistic heavy-ion collisions, the extractions of properties of\nquark-gluon plasma (QGP) are hindered by a limited understanding of its initial\nconditions, where the nuclear structure of the colliding ions play a\nsignificant role. In these proceedings, we present the first quantitative\ndemonstration using ``collective flow assisted nuclear shape imaging\" method to\nextract the quadrupole deformation and triaxiality from $^{238}$U using data\nfrom the Relativistic Heavy Ion Collider (RHIC). We achieve this by comparing\nbulk observables in $^{238}$U+$^{238}$U collisions with nearly spherical\n$^{197}$Au+$^{197}$Au collisions. A similar comparative measurement performed\nin collisions of $^{96}$Ru+$^{96}$Ru and $^{96}$Zr+$^{96}$Zr, suggests the\npresence of moderate quadrupole deformation of $^{96}$Ru, large octupole\ndeformation of $^{96}$Zr, as well as an apparent neutron skin difference\nbetween these two species. The prospect of this nuclear shape imaging method as\na novel tool for the study of nuclear structure is also elaborated.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":"15 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-15","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-2409.09599","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
In relativistic heavy-ion collisions, the extractions of properties of
quark-gluon plasma (QGP) are hindered by a limited understanding of its initial
conditions, where the nuclear structure of the colliding ions play a
significant role. In these proceedings, we present the first quantitative
demonstration using ``collective flow assisted nuclear shape imaging" method to
extract the quadrupole deformation and triaxiality from $^{238}$U using data
from the Relativistic Heavy Ion Collider (RHIC). We achieve this by comparing
bulk observables in $^{238}$U+$^{238}$U collisions with nearly spherical
$^{197}$Au+$^{197}$Au collisions. A similar comparative measurement performed
in collisions of $^{96}$Ru+$^{96}$Ru and $^{96}$Zr+$^{96}$Zr, suggests the
presence of moderate quadrupole deformation of $^{96}$Ru, large octupole
deformation of $^{96}$Zr, as well as an apparent neutron skin difference
between these two species. The prospect of this nuclear shape imaging method as
a novel tool for the study of nuclear structure is also elaborated.