Global Polarization of Ξ and ω Hyperons in Au+Au Collisions at sNN =200 GeV

STAR Collaboration

doi:10.1103/PhysRevLett.126.162301

Global Polarization of Ξ and ω Hyperons in Au+Au Collisions at sNN =200 GeV

STAR Collaboration

Institute of Higher Research

Brookhaven National Laboratory
AGH University of Krakow
Ohio State University
University of Kentucky
Joint Institute for Nuclear Research
Panjab University
Variable Energy Cyclotron Centre
Russian Research Centre Kurchatov Institute
Moscow Engineering Physics Institute
Texas A&M University
Central China Normal University
Kent State University
Universidad de Tarapacá
University of California at Riverside
Stony Brook University
University of Houston
University of Jammu
Czech Technical University in Prague
Czech Academy of Sciences
Rice University
Yale University
University of California at Davis
University of California at Los Angeles
National Cheng Kung University
Shandong University
Fudan University
University of Science and Technology of China
Tsinghua University
Creighton University
University of California at Berkeley
Eötvös Loránd University
Abilene Christian University
Heidelberg University
Institute for High Energy Physics
Lawrence Berkeley National Laboratory
Purdue University
Wayne State University
University of Tsukuba
University of Illinois at Chicago
Lehigh University
Southern Connecticut State University
Technische Universität Darmstadt
Temple University
Valparaiso University
Indian Institute of Science Education and Research, Tirupati
American University in Cairo
CAS - Institute of Modern Physics
Pennsylvania State University
Indiana University Bloomington
Warsaw University of Technology
Goethe University Frankfurt
Argonne National Laboratory
Chinese Academy of Sciences
National Institute of Science Education and Research
University of Texas at Austin
Rutgers - The State University of New Jersey, New Brunswick
Indian Institute of Science Education and Research, Berhampur
Institute of Nuclear Physics PAN
Max Planck Institute for Physics (Werner Heisenberg Institute)
Indian Institute of Technology Patna
Universidade de São Paulo
Huzhou University
Michigan State University
United States Naval Academy

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112 Scopus citations

Abstract

Global polarization of Ξ and ω hyperons has been measured for the first time in Au+Au collisions at sNN=200 GeV. The measurements of the Ξ- and Ξ¯+ hyperon polarization have been performed by two independent methods, via analysis of the angular distribution of the daughter particles in the parity violating weak decay Ξ→Λ+π, as well as by measuring the polarization of the daughter Λ hyperon, polarized via polarization transfer from its parent.

Original language	English
Article number	162301
Journal	Physical Review Letters
Volume	126
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevLett.126.162301
State	Published - 22 Apr 2021

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10.1103/PhysRevLett.126.162301

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title = "Global Polarization of Ξ and ω Hyperons in Au+Au Collisions at sNN =200 GeV",

abstract = "Global polarization of Ξ and ω hyperons has been measured for the first time in Au+Au collisions at sNN=200 GeV. The measurements of the Ξ- and Ξ¯+ hyperon polarization have been performed by two independent methods, via analysis of the angular distribution of the daughter particles in the parity violating weak decay Ξ→Λ+π, as well as by measuring the polarization of the daughter Λ hyperon, polarized via polarization transfer from its parent.",

author = "J. Adam and L. Adamczyk and Adams, \{J. R.\} and Adkins, \{J. K.\} and S. Kabana and \{STAR Collaboration\}",

year = "2021",

month = apr,

day = "22",

doi = "10.1103/PhysRevLett.126.162301",

language = "English",

volume = "126",

journal = "Physical Review Letters",

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T1 - Global Polarization of Ξ and ω Hyperons in Au+Au Collisions at sNN =200 GeV

AU - Adam, J.

AU - Adamczyk, L.

AU - Adams, J. R.

AU - Adkins, J. K.

AU - Kabana, S.

AU - STAR Collaboration

PY - 2021/4/22

Y1 - 2021/4/22

N2 - Global polarization of Ξ and ω hyperons has been measured for the first time in Au+Au collisions at sNN=200 GeV. The measurements of the Ξ- and Ξ¯+ hyperon polarization have been performed by two independent methods, via analysis of the angular distribution of the daughter particles in the parity violating weak decay Ξ→Λ+π, as well as by measuring the polarization of the daughter Λ hyperon, polarized via polarization transfer from its parent.

AB - Global polarization of Ξ and ω hyperons has been measured for the first time in Au+Au collisions at sNN=200 GeV. The measurements of the Ξ- and Ξ¯+ hyperon polarization have been performed by two independent methods, via analysis of the angular distribution of the daughter particles in the parity violating weak decay Ξ→Λ+π, as well as by measuring the polarization of the daughter Λ hyperon, polarized via polarization transfer from its parent.

UR - https://www.scopus.com/pages/publications/85105687681

U2 - 10.1103/PhysRevLett.126.162301

DO - 10.1103/PhysRevLett.126.162301

M3 - Article

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AN - SCOPUS:85105687681

SN - 0031-9007

VL - 126

JO - Physical Review Letters

JF - Physical Review Letters

IS - 16

M1 - 162301

ER -

Global Polarization of Ξ and ω Hyperons in Au+Au Collisions at sNN =200 GeV

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