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Measurement of D-0-meson + hadron two-dimensional angular correlations in Au plus Au collisions at root s(NN)=200 GeV

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dc.contributor.authorAdam, J.
dc.contributor.authorAdamczyk, L.
dc.contributor.authorAdams, J. R.
dc.contributor.authorAdkins, J. K.
dc.contributor.authorAlekseev, I.
dc.contributor.authorBrandin, A. V.
dc.contributor.authorKhyzhniak, Y. V.
dc.contributor.authorKochenda, L.
dc.contributor.authorKravtsov, P.
dc.contributor.authorNigmatkulov, G.
dc.contributor.authorOkorokov, V. A.
dc.contributor.authorStrikhanov, M.
dc.contributor.authorTaranenko, A.
dc.contributor.authorАлексеев, Игорь Геннадьевич
dc.contributor.authorБрандин, Андрей Владимирович
dc.contributor.authorНигматкулов, Григорий Александрович
dc.contributor.authorОкороков, Виталий Алексеевич
dc.contributor.authorСтриханов, Михаил Николаевич
dc.contributor.authorТараненко, Аркадий Владимирович
dc.date.accessioned2024-11-26T15:26:17Z
dc.date.available2024-11-26T15:26:17Z
dc.date.issued2020
dc.description.abstractOpen heavy-flavor hadrons provide unique probes of the medium produced in ultrarelativistic heavy-ion collisions. Due to their increased mass relative to light-flavor hadrons, long lifetime, and early production in hard-scattering interactions, they provide access to the full evolution of the partonic medium formed in heavy-ion collisions. This paper reports two-dimensional (2D) angular correlations between neutral D mesons and unidentified charged particles produced in minimum-bias Au+Au collisions at root s(NN) = 200 GeV. D-0 and D-0 mesons are reconstructed via their weak decay to K--/+ pi(+/-) using the Heavy Flavor Tracker in the Solenoidal Tracker at RHIC experiment. Correlations on relative pseudorapidity and azimuth (Delta(eta), Delta(phi)) are presented for peripheral, midcentral, and central collisions with D-0 transverse momentum from 2-10 GeV/c. Attention is focused on the 2D peaked correlation structure near the triggered D-0 meson, the near-side (NS) peak, which serves as a proxy for a charm-quark-containing jet. The correlated NS yield of charged particles per D-0 meson and the 2D widths of the NS peak increase significantly from peripheral to central collisions. These results are compared with similar correlations using unidentified charged particles, consisting primarily of light-flavor hadrons, at similar trigger particle momenta. Similar per-trigger yields and widths of the NS correlation peak are observed. The present results provide additional evidence that D-0 mesons undergo significant interactions with the medium formed in heavy-ion collision and show, for the first time, significant centrality evolution of the NS 2D peak in the correlations of particles associated with a heavy-flavor hadron produced in these collisions.
dc.identifier.citationMeasurement of D-0-meson + hadron two-dimensional angular correlations in Au plus Au collisions at root s(NN)=200 GeV / Adam, J [et al.] // Physical Review C. - 2020. - 102. - № 1. - 10.1103/PhysRevC.102.014905
dc.identifier.doi10.1103/PhysRevC.102.014905
dc.identifier.urihttps://www.doi.org/10.1103/PhysRevC.102.014905
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85089306320&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000548531400005
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/22104
dc.relation.ispartofPhysical Review C
dc.titleMeasurement of D-0-meson + hadron two-dimensional angular correlations in Au plus Au collisions at root s(NN)=200 GeV
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue1
oaire.citation.volume102
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