Publication: Resolving the hyper-triton yield description puzzle in high energy nuclear collisions
Дата
2021
Авторы
Vitiuk, O. V.
Bugaev, K. A.
Bravina, L. V.
Zabrodin, E. E.
Zherebtsova, E. S.
Blaschke, D. B.
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Аннотация
© 2021, The Author(s).The recently developed hadron resonance gas model with multicomponent hard-core repulsion is used to address and resolve the long standing problem to describe the light nuclear cluster multiplicities including the hyper-triton measured by the STAR Collaboration, known as the hyper-triton chemical freeze-out puzzle. An improved description for the hadronic and light nuclear cluster data measured by STAR at the collision energy sNN=200 GeV and by ALICE at sNN=2.76 TeV is obtained. This is achieved by applying a new strategy of analyzing the light nuclear cluster data and by using the value for the hard-core radius of the (anti-)Λ hyperons found in earlier work. One of the most striking results of the present work is that for the most probable scenario of chemical freeze-out for the STAR energy the obtained parameters allow to simultaneously reproduce the values of the experimental ratios S3 and S¯ 3 which were not included in the fit.
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Resolving the hyper-triton yield description puzzle in high energy nuclear collisions / Vitiuk, O.V. [et al.] // European Physical Journal A. - 2021. - 57. - № 2. - 10.1140/epja/s10050-021-00370-6
URI
https://www.doi.org/10.1140/epja/s10050-021-00370-6
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https://openrepository.mephi.ru/handle/123456789/23743
https://www.scopus.com/record/display.uri?eid=2-s2.0-85101558430&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000623833900003
https://openrepository.mephi.ru/handle/123456789/23743