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Measurement of jet-medium interactions via direct photon-hadron correlations in Au+Au and d+Au collisions at sNN =200 GeV

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dc.contributor.authorAcharya, U.
dc.contributor.authorAdare, A.
dc.contributor.authorAfanasiev, S.
dc.contributor.authorAidala, C.
dc.contributor.authorBlau, D. S.
dc.contributor.authorRiabov, V.
dc.contributor.authorSamsonov, V.
dc.contributor.authorTaranenko, A.
dc.contributor.authorБлау, Дмитрий Сергеевич
dc.contributor.authorРябов, Виктор Германович
dc.contributor.authorТараненко, Аркадий Владимирович
dc.date.accessioned2024-11-27T10:29:00Z
dc.date.available2024-11-27T10:29:00Z
dc.date.issued2020
dc.description.abstract© 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.We present direct photon-hadron correlations in 200 GeV/A Au+Au, d+Au, and p+p collisions, for direct photon pT from 5-12 GeV/c, collected by the PHENIX Collaboration in the years from 2006 to 2011. We observe no significant modification of jet fragmentation in d+Au collisions, indicating that cold nuclear matter effects are small or absent. Hadrons carrying a large fraction of the quark's momentum are suppressed in Au+Au compared to p+p and d+Au. As the momentum fraction decreases, the yield of hadrons in Au+Au increases to an excess over the yield in p+p collisions. The excess is at large angles and at low hadron pT and is most pronounced for hadrons associated with lower momentum direct photons. Comparison to theoretical calculations suggests that the hadron excess arises from medium response to energy deposited by jets.
dc.identifier.citationMeasurement of jet-medium interactions via direct photon-hadron correlations in Au+Au and d+Au collisions at sNN =200 GeV / Acharya, U. [et al.] // Physical Review C. - 2020. - 102. - № 5. - 10.1103/PhysRevC.102.054910
dc.identifier.doi10.1103/PhysRevC.102.054910
dc.identifier.urihttps://www.doi.org/10.1103/PhysRevC.102.054910
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85097148723&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000590408900003
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/22659
dc.relation.ispartofPhysical Review C
dc.titleMeasurement of jet-medium interactions via direct photon-hadron correlations in Au+Au and d+Au collisions at sNN =200 GeV
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue5
oaire.citation.volume102
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