MEASUREMENT OF GLOBAL SPIN ALIGNMENT OF VECTOR MESONS AT RHIC

被引：1
|
作者：
Singha, Subhash [1 ]
机构：
[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou 73000, Peoples R China
来源：
ACTA PHYSICA POLONICA B PROCEEDINGS SUPPLEMENT | 2023年 / 16卷 / 01期
关键词：
D O I：
10.5506/APhysPolBSupp.16.1-A34
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report on the measurements of spin alignment (rho(00)) for K*0, (K*0) over bar, K*(+), and K*- vector mesons in the RHIC isobar collisions (Zr+Zr and Ru+Ru) at root s(NN) = 200 GeV. We observe the first non-zero spin alignment for K*(+/-) in heavy-ion collisions. The K*(+/-) rho(00) is about 3.9 sigma larger than that of K*(0). The observed difference and the ordering between K*(+/-) and K*(0) are surprising and require further inputs from theory. When comparing the isobar and Au+Au collisions, no significant system size dependence in K*(0) rho(00) is observed within uncertainties.
引用
下载
收藏
页数：6
相关论文
共 50 条
  • [1] Measurement of global spin alignment of K*0 and φ vector mesons using the STAR detector at RHIC
    Singha, Subhash
    NUCLEAR PHYSICS A, 2021, 1005
  • [2] Global polarization of hyperons and spin alignment of vector mesons in matters
    Li-Juan, Ruan
    Zhang-Bu, Xu
    Chi, Yang
    ACTA PHYSICA SINICA, 2023, 72 (11)
  • [3] Global spin alignment of vector mesons in heavy ion collisions
    Sheng, Xin-Li
    Liang, Zuo-Tang
    Wang, Qun
    ACTA PHYSICA SINICA, 2023, 72 (07)
  • [4] Spin alignment measurement of vector mesons produced in high energy collisions
    Mohanty, Bedangadas
    Kundu, Sourav
    Singha, Subhash
    Singh, Ranbir
    MODERN PHYSICS LETTERS A, 2021, 36 (39)
  • [5] Global spin alignment of φ and K*0 vector mesons in Au plus Au collisions from RHIC BES-II program
    Wilks, Gavin
    20TH INTERNATIONAL CONFERENCE ON STRANGENESS IN QUARK MATTER, SQM 2022, 2023, 276
  • [6] Measurements of spin alignment of vector mesons and global polarization of hyperons with ALICE at the LHC
    Mohanty, Bedangadas
    17TH INTERNATIONAL CONFERENCE ON STRANGENESS IN QUARK MATTER (SQM 2017), 2018, 171
  • [7] Spin alignment of vector mesons by glasma fields
    Kumar, Avdhesh
    Mueller, Berndt
    Yang, Di-Lun
    PHYSICAL REVIEW D, 2023, 108 (01)
  • [8] Spin alignment measurements of vector mesons with ALICE at the LHC
    Kundu, Sourav
    NUCLEAR PHYSICS A, 2021, 1005
  • [9] Practical considerations for measuring global spin alignment of vector mesons in relativistic heavy ion collisions
    Tang, A. H.
    Tu, B.
    Zhou, C. S.
    PHYSICAL REVIEW C, 2018, 98 (04)
  • [10] Global spin alignment of vector mesons and strong force fields in heavy-ion collisions
    Chen, Jinhui
    Liang, Zuo-Tang
    Ma, Yu-Gang
    Wang, Qun
    SCIENCE BULLETIN, 2023, 68 (09) : 874 - 877
12345