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

doi:10.1103/PhysRevC.102.014905

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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
	Adam, J ; Adamczyk, L ; Adams, JR ; Adkins, JK ; Agakishiev, G ; Aggarwal, MM ; Ahammed, Z ; Alekseev, I ; Anderson, DM ; Aparin, A
刊名	PHYSICAL REVIEW C
	2020
卷号	102 期号:1 页码:-
关键词	ANGULAR-CORRELATIONS COLLISIONS MESONS
ISSN号	0556-2813
DOI	10.1103/PhysRevC.102.014905
文献子类	期刊论文
英文摘要	Open 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.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32990]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Wayne State Univ, Detroit, MI 48201 USA 2.Valparaiso Univ, Valparaiso, IN 46383 USA 3.Tsinghua Univ, Beijing 100084, Peoples R China 4.Univ Tsukuba, Tsukuba, Ibaraki 3058571, Japan 5.Warsaw Univ Technol, PL-00661 Warsaw, Poland 6.Abilene Christian Univ, Abilene, TX 79699 USA 7.AGH Univ Sci & Technol, FPACS, PL-30059 Krakow, Poland 8.NRC Kurchatov Inst, Alikhanov Inst Theoret & Expt Phys, Moscow 117218, Russia 9.Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA 10.Amer Univ Cairo, New Cairo 11835, Egypt
推荐引用方式 GB/T 7714	Adam, J,Adamczyk, L,Adams, JR,et al. Measurement of D-0-meson + hadron two-dimensional angular correlations in Au plus Au collisions at root s(NN)=200 GeV[J]. PHYSICAL REVIEW C,2020,102(1):-.
APA	Adam, J.,Adamczyk, L.,Adams, JR.,Adkins, JK.,Agakishiev, G.,...&Zyzak, M.(2020).Measurement of D-0-meson + hadron two-dimensional angular correlations in Au plus Au collisions at root s(NN)=200 GeV.PHYSICAL REVIEW C,102(1),-.
MLA	Adam, J,et al."Measurement of D-0-meson + hadron two-dimensional angular correlations in Au plus Au collisions at root s(NN)=200 GeV".PHYSICAL REVIEW C 102.1(2020):-.