机构地区:[1]Stony Brook University,Stony Brook,NY 11794,USA [2]Brookhaven National Laboratory,Upton,NY 11973,USA [3]CERN,CH‑1211 Geneve 23,Switzerland [4]IRFU,CEA,UniversitéParis-Saclay,91191 Gif‑sur‑Yvette,France [5]The Ohio State University,Columbus,OH 43210‑1117,USA [6]Michigan State University,East Lansing,MI 48824,USA [7]Massachusetts Institute of Technology,Cambridge,MA 02139,USA [8]Rice University,Houston,TX 77005,USA [9]Instituto de Física,Universidade de São Paulo,R.do Matão 1371,São Paulo 05508‑090,Brazil [10]University of Illinois at Urbana-Champaign,Champaign,IL 61801,USA [11]Lawrence Berkeley National Laboratory,Berkeley,CA 94720,USA [12]Wayne State University,Detroit,MI 48201,USA [13]RIKEN BNL Research Center,Brookhaven National Laboratory,Upton,NY 11973,USA [14]University of Houston,Houston,TX 77204,USA [15]Physics Department,Kent State University,Kent,OH 44242,USA [16]Niels Bohr Institute,University of Copenhagen,Blegdamsvej 17,2100 Copenhagen,Denmark
出 处:《Nuclear Science and Techniques》2024年第12期438-454,共17页核技术(英文)
基 金:U.S.Department of Energy,Office of Science,Ofifce of Nuclear Physics,under Award or Contract No.DE-SC002418(JDB),DE-SC0024602(SH,JJ,CZ),DE-SC0004286(UH),DE-FG02-10ER41666(CL,WL),DE-SC0013365,DE-SC0024586 and DE-SC0023175(DL),DE-SC0011088(YL),DE-AC02-05CH11231(MP),DE-FG02-89ER40531(AT),DE-SC0012704(BS),DE-SC0021969 and DE-SC0024232(CS),DE-SC0023861(JN),DE-FG02-07ER41521(ZX);by National Science Foundation under grant number OAC-2103680(JN);by European Union(ERC,Initial Conditions),VILLUM FONDEN with grant no.00025462,and Danmarks Frie Forskningsfond(YZ);by FAPESP projects 2017/05685-2,2018/24720-6,and 2021/08465-9,project INCT-FNA Proc.~No.~464898/2014-5,and CAPES-Finance Code 001(ML)。
摘 要:High-energy nuclear collisions encompass three key stages:the structure of the colliding nuclei,informed by low-energy nuclear physics,the initial condition,leading to the formation of quark-gluon plasma(QGP),and the hydrodynamic expansion and hadronization of the QGP,leading to fnal-state hadron distributions that are observed experimentally.Recent advances in both experimental and theoretical methods have ushered in a precision era of heavy-ion collisions,enabling an increasingly accurate understanding of these stages.However,most approaches involve simultaneously determining both QGP properties and initial conditions from a single collision system,creating complexity due to the coupled contributions of these stages to the fnal-state observables.To avoid this,we propose leveraging established knowledge of low-energy nuclear structures and hydrodynamic observables to independently constrain the QGP's initial condition.By conducting comparative studies of collisions involving isobar-like nuclei—species with similar mass numbers but diferent ground-state geometries—we can disentangle the initial condition's impacts from the QGP properties.This approach not only refnes our understanding of the initial stages of the collisions but also turns high-energy nuclear experiments into a precision tool for imaging nuclear structures,ofering insights that complement traditional low-energy approaches.Opportunities for carrying out such comparative experiments at the Large Hadron Collider and other facilities could signifcantly advance both highenergy and low-energy nuclear physics.Additionally,this approach has implications for the future electron-ion collider.While the possibilities are extensive,we focus on selected proposals that could beneft both the high-energy and low-energy nuclear physics communities.Originally prepared as input for the long-range plan of U.S.nuclear physics,this white paper refects the status as of September 2022,with a brief update on developments since then.
关 键 词:Nuclear structure Heavy-ion collisions Collective behavior Quark-gluon plasma
分 类 号:O571.6[理学—粒子物理与原子核物理]
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