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dc.contributor.authorPHENIX Collaboration
dc.contributor.authorKim, Dong Jo
dc.contributor.authorKrizek, Filip
dc.contributor.authorNovitzky, Norbert
dc.contributor.authorRak, Jan
dc.date.accessioned2019-01-03T12:58:20Z
dc.date.available2019-01-03T12:58:20Z
dc.date.issued2018fi
dc.identifier.citationPHENIX Collaboration. (2018). Production of π0 and η mesons in Cu+Au collisions at √sNN = 200 GeV. <em>Physical Review C</em>, 98 (5), 054903. <a href="https://doi.org/10.1103/PhysRevC.98.054903">doi:10.1103/PhysRevC.98.054903</a>fi
dc.identifier.otherTUTKAID_79837
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/60870
dc.description.abstractProduction of π0 and η mesons has been measured at midrapidity in Cu+Au collisions at √sNN = 200 GeV. Measurements were performed in π0 (η) → γ γ decay channel in the 1(2)-20 GeV/c transverse momentum range. A strong suppression is observed for π0 and η meson production at high transverse momentum in central Cu+Au collisions relative to the p + p results scaled by the number of nucleon-nucleon collisions. In central collisions the suppression is similar to Au + Au with comparable nuclear overlap. The η/π0 ratio measured as a function of transverse momentum is consistent with mT -scaling parametrization down to pT = 2 GeV/c, its asymptotic value is constant and consistent with Au + Au and p + p and does not show any significant dependence on collision centrality. Similar results were obtained in hadron-hadron, hadron-nucleus, and nucleusnucleus collisions as well as in e+e− collisions in a range of collision energies √sNN = 3−1800 GeV. This suggests that the quark-gluon-plasma medium produced in Cu+Cu collisions either does not affect the jet fragmentation into light mesons or it affects the π0 and η the same way.fi
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.ispartofseriesPhysical Review C
dc.rightsCC BY 4.0
dc.subject.otherhiukkasfysiikkafi
dc.subject.otherrelativistic heavy-ion collisionsfi
dc.subject.otherpionsfi
dc.subject.othereta mesonsfi
dc.titleProduction of π0 and η mesons in Cu+Au collisions at √sNN = 200 GeVfi
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201812125082
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2018-12-12T13:15:14Z
dc.description.reviewstatuspeerReviewed
dc.relation.issn2469-9985
dc.relation.numberinseries5
dc.relation.volume98
dc.type.versionpublishedVersion
dc.rights.copyright© The Authors, 2018.
dc.rights.accesslevelopenAccessfi
dc.format.contentfulltext
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1103/PhysRevC.98.054903


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