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)

Chemistry

Brookhaven National Laboratory
AGH University of Krakow
Ohio State University
University of Kentucky
Joint Institute for Nuclear Research
Panjab University
Variable Energy Cyclotron Centre India
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

Research output: Contribution to journal › Article › peer-review

100 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 - Apr 22 2021

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10.1103/PhysRevLett.126.162301

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@article{d74a991bdf5b48c4b4c7fa8fe1a427e6,

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 = "\{(STAR Collaboration)\} and J. Adam and L. Adamczyk and Adams, \{J. R.\} and Adkins, \{J. K.\} and G. Agakishiev and Aggarwal, \{M. M.\} and Z. Ahammed and I. Alekseev and Anderson, \{D. M.\} and A. Aparin and Aschenauer, \{E. C.\} and Ashraf, \{M. U.\} and Atetalla, \{F. G.\} and A. Attri and Averichev, \{G. S.\} and V. Bairathi and K. Barish and A. Behera and R. Bellwied and A. Bhasin and J. Bielcik and J. Bielcikova and Bland, \{L. C.\} and Bordyuzhin, \{I. G.\} and Brandenburg, \{J. D.\} and Brandin, \{A. V.\} and J. Butterworth and H. Caines and \{Calder{\'o}n De La Barca S{\'a}nchez\}, M. and D. Cebra and I. Chakaberia and P. Chaloupka and Chan, \{B. K.\} and Chang, \{F. H.\} and Z. Chang and N. Chankova-Bunzarova and A. Chatterjee and D. Chen and J. Chen and Chen, \{J. H.\} and X. Chen and Z. Chen and J. Cheng and M. Cherney and M. Chevalier and S. Choudhury and W. Christie and X. Chu and J. Jia and R. Lacey",

year = "2021",

month = apr,

day = "22",

doi = "10.1103/PhysRevLett.126.162301",

language = "English",

volume = "126",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "16",

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

AU - (STAR Collaboration)

AU - Adam, J.

AU - Adamczyk, L.

AU - Adams, J. R.

AU - Adkins, J. K.

AU - Agakishiev, G.

AU - Aggarwal, M. M.

AU - Ahammed, Z.

AU - Alekseev, I.

AU - Anderson, D. M.

AU - Aparin, A.

AU - Aschenauer, E. C.

AU - Ashraf, M. U.

AU - Atetalla, F. G.

AU - Attri, A.

AU - Averichev, G. S.

AU - Bairathi, V.

AU - Barish, K.

AU - Behera, A.

AU - Bellwied, R.

AU - Bhasin, A.

AU - Bielcik, J.

AU - Bielcikova, J.

AU - Bland, L. C.

AU - Bordyuzhin, I. G.

AU - Brandenburg, J. D.

AU - Brandin, A. V.

AU - Butterworth, J.

AU - Caines, H.

AU - Calderón De La Barca Sánchez, M.

AU - Cebra, D.

AU - Chakaberia, I.

AU - Chaloupka, P.

AU - Chan, B. K.

AU - Chang, F. H.

AU - Chang, Z.

AU - Chankova-Bunzarova, N.

AU - Chatterjee, A.

AU - Chen, D.

AU - Chen, J.

AU - Chen, J. H.

AU - Chen, X.

AU - Chen, Z.

AU - Cheng, J.

AU - Cherney, M.

AU - Chevalier, M.

AU - Choudhury, S.

AU - Christie, W.

AU - Chu, X.

AU - Jia, J.

AU - Lacey, R.

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

C2 - 33961449

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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