Observation of D-s(+/-)/D-0 Enhancement in Au plus Au Collisions at root s(NN)=200 GeV

doi:10.1103/PhysRevLett.127.092301

	Observation of D-s(+/-)/D-0 Enhancement in Au plus Au Collisions at root s(NN)=200 GeV
	Adam, J.9; Adamczyk, L.5; Adams, J. R.41; Adkins, J. K.32; Agakishiev, G.30; Aggarwal, M. M.43; Ahammed, Z.63; Alekseev, I.6,37; Anderson, D. M.57; Aparin, A.30
刊名	PHYSICAL REVIEW LETTERS
	2021-08-26
卷号	127 期号:9 页码:8
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.127.092301
通讯作者	Igo, G.() ; Sandweiss, J.() ; Spinka, H. M.()
英文摘要	We report on the first measurement of charm-strange meson D-s(+/-) production at midrapidity in Au + Au collisions at root s(NN) = 200 GeV from the STAR experiment. The yield ratio between strange (D-s(+/-)) and nonstrange (D-0) open-charm mesons is presented and compared to model calculations. A significant enhancement, relative to a PYTHIA simulation of p + p collisions, is observed in the D-s(+/-)/D-0 yield ratio in Au + Au collisions over a large range of collision centralities. Model calculations incorporating abundant strange-quark production in the quark-gluon plasma and coalescence hadronization qualitatively reproduce the data. The transverse-momentum integrated yield ratio of D-s(+/-)/D-0 at midrapidity is consistent with a prediction from a statistical hadronization model with the parameters constrained by the yields of light and strange hadrons measured at the same collision energy. These results suggest that the coalescence of charm quarks with strange quarks in the quark-gluon plasma plays an important role in D-s(+/-)-meson production in heavy-ion collisions.
资助项目	RHIC Operations Group at BNL ; RCF at BNL ; NERSC Center at LBNL ; Open Science Grid consortium ; Office of Nuclear Physics within the U.S. DOE Office of Science ; U.S. National Science Foundation ; Ministry of Education and Science of the Russian Federation, National Natural Science Foundation of China, Chinese Academy of Science ; Ministry of Science and Technology of China ; Chinese Ministry of Education ; Higher Education Sprout Project by Ministry of Education at NCKU ; National Research Foundation of Korea ; Czech Science Foundation ; Ministry of Education, Youth and Sports of the Czech Republic ; Hungarian National Research, Development and Innovation Office ; New National Excellency Programme of the Hungarian Ministry of Human Capacities ; Department of Atomic Energy and Department of Science and Technology of the Government of India ; National Science Centre of Poland ; Ministry of Science, Education and Sports of the Republic of Croatia, RosAtom of Russia ; German Bundesministerium fur Bildung, Wissenschaft, Forschung and Technologie (BMBF) ; Helmholtz Association ; Ministry of Education, Culture, Sports, Science, and Technology (MEXT) ; Japan Society for the Promotion of Science (JSPS)
WOS关键词	QUARK-GLUON PLASMA ; PB-PB COLLISIONS ; MESON PRODUCTION ; CROSS-SECTION ; MID-RAPIDITY ; FRAGMENTATION ; PARTON ; PP
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000689744100002
资助机构	RHIC Operations Group at BNL ; RCF at BNL ; NERSC Center at LBNL ; Open Science Grid consortium ; Office of Nuclear Physics within the U.S. DOE Office of Science ; U.S. National Science Foundation ; Ministry of Education and Science of the Russian Federation, National Natural Science Foundation of China, Chinese Academy of Science ; Ministry of Science and Technology of China ; Chinese Ministry of Education ; Higher Education Sprout Project by Ministry of Education at NCKU ; National Research Foundation of Korea ; Czech Science Foundation ; Ministry of Education, Youth and Sports of the Czech Republic ; Hungarian National Research, Development and Innovation Office ; New National Excellency Programme of the Hungarian Ministry of Human Capacities ; Department of Atomic Energy and Department of Science and Technology of the Government of India ; National Science Centre of Poland ; Ministry of Science, Education and Sports of the Republic of Croatia, RosAtom of Russia ; German Bundesministerium fur Bildung, Wissenschaft, Forschung and Technologie (BMBF) ; Helmholtz Association ; Ministry of Education, Culture, Sports, Science, and Technology (MEXT) ; Japan Society for the Promotion of Science (JSPS)
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/136375]
专题	中国科学院近代物理研究所
通讯作者	Igo, G.; Sandweiss, J.; Spinka, H. M.
作者单位	1.Wayne State Univ, Detroit, MI 48201 USA 2.Yale Univ, New Haven, CT 06520 USA 3.Indian Inst Technol, Patna 801106, Bihar, India 4.Abilene Christian Univ, Abilene, TX 79699 USA 5.AGH Univ Sci & Technol, FPACS, PL-30059 Krakow, Poland 6.Kurchatov Inst, Alikhanov Inst Theoret & Expt Phys NRC, Moscow 117218, Russia 7.Argonne Natl Lab, Argonne, IL 60439 USA 8.Amer Univ Cairo, New Cairo 11835, Egypt 9.Brookhaven Natl Lab, Upton, NY 11973 USA 10.Univ Calif Berkeley, Berkeley, CA 94720 USA
推荐引用方式 GB/T 7714	Adam, J.,Adamczyk, L.,Adams, J. R.,et al. Observation of D-s(+/-)/D-0 Enhancement in Au plus Au Collisions at root s(NN)=200 GeV[J]. PHYSICAL REVIEW LETTERS,2021,127(9):8.
APA	Adam, J..,Adamczyk, L..,Adams, J. R..,Adkins, J. K..,Agakishiev, G..,...&Zyzak, M..(2021).Observation of D-s(+/-)/D-0 Enhancement in Au plus Au Collisions at root s(NN)=200 GeV.PHYSICAL REVIEW LETTERS,127(9),8.
MLA	Adam, J.,et al."Observation of D-s(+/-)/D-0 Enhancement in Au plus Au Collisions at root s(NN)=200 GeV".PHYSICAL REVIEW LETTERS 127.9(2021):8.