Beam energy dependence of (anti-)deuteron production in Au plus Au collisions at the BNL Relativistic Heavy Ion Collider

被引：79

作者：

Adam, J. ^{[12
]}

Adamczyk, L. ^{[2
]}

Adams, J. R. ^{[35
]}

Adkins, J. K. ^{[26
]}

Agakishiev, G. ^{[24
]}

Aggarwal, M. M. ^{[37
]}

Ahammed, Z. ^{[57
]}

Alekseev, I ^{[3
,31
]}

Anderson, D. M. ^{[51
]}

Aoyama, R. ^{[54
]}

Aparin, A. ^{[24
]}

Arkhipkin, D. ^{[5
]}

Aschenauer, E. C. ^{[5
]}

Ashraf, M. U. ^{[53
]}

Atetalla, F. ^{[25
]}

Attri, A. ^{[37
]}

Averichev, G. S. ^{[24
]}

Bairathi, V ^{[32
]}

Barish, K. ^{[9
]}

Bassill, A. J. ^{[9
]}

Behera, A. ^{[49
]}

Bellwied, R. ^{[19
]}

Bhasin, A. ^{[23
]}

Bhati, A. K. ^{[37
]}

Bielcik, J. ^{[13
]}

Bielcikova, J. ^{[34
]}

Bland, L. C. ^{[5
]}

Bordyuzhin, I. G. ^{[3
]}

Brandenburg, J. D. ^{[5
,46
]}

Brandin, A., V ^{[31
]}

Bryslawskyj, J. ^{[9
]}

Bunzarov, I ^{[24
]}

Butterworth, J. ^{[42
]}

Caines, H. ^{[60
]}

de la Barca Sanchez, M. Calderon ^{[7
]}

Cebra, D. ^{[7
]}

Chakaberia, I ^{[5
,25
]}

Chaloupka, P. ^{[13
]}

Chan, B. K. ^{[8
]}

Chang, F-H ^{[33
]}

Chang, Z. ^{[5
]}

Chankova-Bunzarova, N. ^{[24
]}

Chatterjee, A. ^{[57
]}

Chattopadhyay, S. ^{[57
]}

Chen, J. H. ^{[17
]}

Chen, X. ^{[45
]}

Cheng, J. ^{[53
]}

Cherney, M. ^{[12
]}

Christie, W. ^{[5
]}

Crawford, H. J. ^{[8
]}

机构：

[1] Abilene Christian Univ, Abilene, TX 79699 USA

[2] AGH Univ Sci & Technol, FPACS, PL-30059 Krakow, Poland

[3] Alikhanov Inst Theoret & Expt Phys, Moscow 117218, Russia

[4] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA

[5] Brookhaven Natl Lab, Upton, NY 11973 USA

[6] Univ Calif Berkeley, Berkeley, CA 94720 USA

[7] Univ Calif Davis, Davis, CA 95616 USA

[8] Univ Calif Los Angeles, Los Angeles, CA 90095 USA

[9] Univ Calif Riverside, Riverside, CA 92521 USA

[10] Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China

[11] Univ Illinois, Chicago, IL 60607 USA

[12] Creighton Univ, Omaha, NE 68178 USA

[13] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic

[14] Tech Univ Darmstadt, D-64289 Darmstadt, Germany

[15] Eotvos Lorand Univ, H-1117 Budapest, Hungary

[16] FIAS, D-60438 Frankfurt, Germany

[17] Fudan Univ, Shanghai 200433, Peoples R China

[18] Heidelberg Univ, D-69120 Heidelberg, Germany

[19] Univ Houston, Houston, TX 77204 USA

[20] Huzhou Univ, Huzhou 313000, Zhejiang, Peoples R China

[21] Indiana Univ, Bloomington, IN 47408 USA

[22] Inst Phys, Bhubaneswar 751005, India

[23] Univ Jammu, Jammu 180001, Jammu & Kashmir, India

[24] Joint Inst Nucl Res, Dubna 141980, Russia

[25] Kent State Univ, Kent, OH 44242 USA

[26] Univ Kentucky, Lexington, KY 40506 USA

[27] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[28] Lehigh Univ, Bethlehem, PA 18015 USA

[29] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[30] Michigan State Univ, E Lansing, MI 48824 USA

[31] Natl Res Nucl Univ MEPhI, Moscow 115409, Russia

[32] HBNI, Natl Inst Sci Educ & Res, Jatni 752050, India

[33] Natl Cheng Kung Univ, Tainan 70101, Taiwan

[34] CAS, Nucl Phys Inst, Rez 25068, Czech Republic

[35] Ohio State Univ, Columbus, OH 43210 USA

[36] Inst Nucl Phys PAN, PL-31342 Krakow, Poland

[37] Panjab Univ, Chandigarh 160014, India

[38] Penn State Univ, University Pk, PA 16802 USA

[39] NRC Kurchatov Inst, Inst High Energy Phys, Protvino 142281, Russia

[40] Purdue Univ, W Lafayette, IN 47907 USA

[41] Pusan Natl Univ, Pusan 46241, South Korea

[42] Rice Univ, Houston, TX 77251 USA

[43] Rutgers State Univ, Piscataway, NJ 08854 USA

[44] Univ Sao Paulo, BR-05314970 Sao Paulo, Brazil

[45] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China

[46] Shandong Univ, Qingdao 266237, Shandong, Peoples R China

[47] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

[48] Southern Connecticut State Univ, New Haven, CT 06515 USA

[49] SUNY Stony Brook, Stony Brook, NY 11794 USA

[50] Temple Univ, Philadelphia, PA 19122 USA

来源：

PHYSICAL REVIEW C | 2019年 / 99卷 / 06期

基金：

美国国家科学基金会; 新加坡国家研究基金会; 中国国家自然科学基金;

关键词：

LIGHT-NUCLEI PRODUCTION; QUARK-GLUON PLASMA; COALESCENCE; PERSPECTIVE; DEUTERON;

D O I：

10.1103/PhysRevC.99.064905

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We report the energy dependence of mid-rapidity (anti-)deuteron production in Au+Au collisions at root s(NN) = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4, and 200 GeV, measured by the STAR experiment at the BNL Relativistic Heavy Ion Collider. The yield of deuterons is found to be well described by the thermal model. The collision energy, centrality, and transverse momentum dependence of the coalescence parameter B-2 are discussed. We find that the values of B-2 for antideuterons are systematically lower than those for deuterons, indicating that the correlation volume of antibaryons is larger than that of baryons at root s(NN) from 19.6 to 39 GeV. In addition, values of B-2 are found to vary with collision energy and show a broad minimum around root s(NN) = 20-40 GeV, which might imply a change of the equation of state of the medium in these collisions.

引用

页数：12

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