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Two-pion femtoscopic correlations in Be+Be collisions at √sNN=16.84 GeV measured by the NA61/SHINE at CERN

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dc.contributor.authorAdhikary, H.
dc.contributor.authorAdrich, P.
dc.contributor.authorAllison, K. K.
dc.contributor.authorAmin, N.
dc.contributor.authorBrandin, A.
dc.contributor.authorGolosov, O.
dc.contributor.authorKargin, N.
dc.contributor.authorKashirin, E.
dc.contributor.authorStrikhanov, M.
dc.contributor.authorTaranenko, A.
dc.contributor.authorБрандин, Андрей Владимирович
dc.contributor.authorГолосов, Олег Владимирович
dc.contributor.authorКаргин, Николай Иванович
dc.contributor.authorСтриханов, Михаил Николаевич
dc.contributor.authorТараненко, Аркадий Владимирович
dc.date.accessioned2024-12-27T10:26:57Z
dc.date.available2024-12-27T10:26:57Z
dc.date.issued2023
dc.description.abstractThis paper reports measurements of two-pion femtoscopic correlations in Be+Be collisions at a beam momentum of 150A GeV/c (energy available in the centerof-mass system for nucleon pair √sNN = 16.84 GeV) by the NA61/SHINE experiment at the CERN SPS accelerator. The obtained momentum space correlation functions can be well described by a Lévy distributed source model. The transverse mass dependence of the Lévy source parameters is presented, and their possible theoretical interpretations are discussed.The results show that the Lévy exponent α is approximately constant as a function of mT , and far from both the Gaussian case of α = 2 or the conjectured value at the critical endpoint, α = 0.5. The radius scale parameter R shows a slight decrease in mT , which can be explained as a signature of transverse flow. Finally, an approximately constant trend of the intercept parameter λ as a function of mT was observed, similar to previous NA44 S + Pb results (obtained with a Gaussian approximation, but unlike RHIC results)
dc.identifier.citationTwo-pion femtoscopic correlations in Be+Be collisions at √sNN=16.84 GeV measured by the NA61/SHINE at CERN / Adhikary, H. [et al.] // European Physical Journal C. - 2023. - 83. - № 10. - 10.1140/epjc/s10052-023-11997-8
dc.identifier.doi10.1140/epjc/s10052-023-11997-8
dc.identifier.urihttps://www.doi.org/10.1140/epjc/s10052-023-11997-8
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85173827554&origin=resultslist
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/29325
dc.relation.ispartofEuropean Physical Journal C
dc.titleTwo-pion femtoscopic correlations in Be+Be collisions at √sNN=16.84 GeV measured by the NA61/SHINE at CERN
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue10
oaire.citation.volume83
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