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Global polarization of ξ and ω hyperons in au+au collisions at sNN =200 GeV
Resource type
Authors/contributors
- STAR Collaboration (Author)
- Finch, Evan (Contributor)
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. The polarization, obtained by combining the results from the two methods and averaged over Ξ- and Ξ¯+, is measured to be ⟨PΞ ©=0.47±0.10(stat)±0.23(syst)% for the collision centrality 20%-80%. The ⟨PΞ. © 2021 American Physical Society. All rights reserved.
Publication
Physical Review Letters
Date
2021
Volume
126
Issue
16
Citation Key
Adam2021
ISSN
00319007
Language
english
Extra
37 citations (Crossref) [2023-10-31]
tex.art_number: 162301
tex.coden: PRLTA
tex.document_type: Article
tex.pubmed_id: 33961449
tex.source: Scopus
Citation
STAR Collaboration. (2021). Global polarization of ξ and ω hyperons in au+au collisions at sNN =200 GeV. Physical Review Letters, 126(16). https://doi.org/10.1103/physrevlett.126.162301
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