Production of protons and light nuclei in Au plus Au collisions at √sNN=3 GeV with the STAR detector

被引:1
|
作者
Abdulhamid, M. I. [4 ]
Aboona, B. E. [57 ]
Adam, J. [17 ]
Adamczyk, L. [2 ]
Adams, J. R. [42 ]
Aggarwal, I. [44 ]
Aggarwal, M. M. [44 ]
Ahammed, Z. [64 ]
Aschenauer, E. C. [6 ]
Aslam, S. [29 ]
Atchison, J. [1 ]
Bairathi, V. [55 ]
Cap, J. G. Ball [25 ]
Barish, K. [12 ]
Bellwied, R. [25 ]
Bhagat, P. [32 ]
Bhasin, A. [32 ]
Bhatta, S. [54 ]
Bhosale, S. R. [20 ]
Bielcik, J. [17 ]
Bielcikova, J. [41 ]
Brandenburg, J. D. [42 ]
Broodo, C. [25 ]
Cai, X. Z. [52 ]
Caines, H.
Sanchez, M. Calderon de la Barca [10 ]
Cebra, D. [10 ]
Ceska, J. [17 ]
Chakaberia, I. [35 ]
Chaloupka, P. [17 ]
Chan, B. K. [11 ]
Chang, Z. [30 ]
Chatterjee, A. [19 ]
Chen, D. [12 ]
Chen, J. [51 ]
Chen, J. H. [22 ]
Chen, Q. [23 ]
Chen, Z. [51 ]
Cheng, J. [59 ]
Cheng, Y. [11 ]
Christie, W. [6 ]
Chu, X. [6 ]
Crawford, H. J. [9 ]
Csanad, M. [20 ]
Dale-Gau, G. [14 ]
Das, A. [17 ]
Deppner, I. M. [24 ]
Deshpande, A. [54 ]
Dhamija, A. [44 ]
Dixit, P. [27 ]
机构
[1] Abilene Christian Univ, Abilene, TX 79699 USA
[2] AGH Univ Krakow, FPACS, PL-30059 Krakow, Poland
[3] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA
[4] Amer Univ Cairo, New Cairo 11835, Egypt
[5] Ball State Univ, Muncie, IN 47306 USA
[6] Brookhaven Natl Lab, Upton, NY 11973 USA
[7] Univ Calabria, I-87036 Arcavacata Di Rende, Italy
[8] INFN Cosenza, I-87036 Arcavacata Di Rende, Italy
[9] Univ Calif Berkeley, Berkeley, CA 94720 USA
[10] Univ Calif Davis, Davis, CA 95616 USA
[11] Univ Calif Los Angeles, Los Angeles, CA 90095 USA
[12] Univ Calif Riverside, Riverside, CA 92521 USA
[13] Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
[14] Univ Illinois, Chicago, IL 60607 USA
[15] Chongqing Univ, Chongqing 401331, Peoples R China
[16] Creighton Univ, Omaha, NE 68178 USA
[17] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic
[18] Tech Univ Darmstadt, D-64289 Darmstadt, Germany
[19] Natl Inst Technol Durgapur, Durgapur 713209, India
[20] Eotvos Lorand Univ, H-1117 Budapest, Hungary
[21] Frankfurt Inst Adv Studies FIAS, D-60438 Frankfurt, Germany
[22] Fudan Univ, Shanghai 200433, Peoples R China
[23] Guangxi Normal Univ, Guilin 541004, Peoples R China
[24] Heidelberg Univ, D-69120 Heidelberg, Germany
[25] Univ Houston, Houston, TX 77204 USA
[26] Huzhou Univ, Huzhou 313000, Zhejiang, Peoples R China
[27] Indian Inst Sci Educ & Res IISER, Berhampur 760010, India
[28] Indian Inst Sci Educ & Res IISER Tirupati, Tirupati 517507, Andhra Pradesh, India
[29] Indian Inst Technol, Patna 801106, Bihar, India
[30] Indiana Univ, Bloomington, IN 47408 USA
[31] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
[32] Univ Jammu, Jammu 180001, India
[33] Kent State Univ, Kent, OH 44242 USA
[34] Univ Kentucky, Lexington, KY 40506 USA
[35] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
[36] Lehigh Univ, Bethlehem, PA 18015 USA
[37] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany
[38] Michigan State Univ, E Lansing, MI 48824 USA
[39] HBNI, Natl Inst Sci Educ & Res, Jatni 752050, India
[40] Natl Cheng Kung Univ, Tainan 70101, Taiwan
[41] CAS, Nucl Phys Inst, Rez 25068, Czech Republic
[42] Ohio State Univ, Columbus, OH 43210 USA
[43] PAN, Inst Phys Nucl, PL-31342 Krakow, Poland
[44] Panjab Univ, Chandigarh 160014, India
[45] Purdue Univ, W Lafayette, IN 47907 USA
[46] Rice Univ, Houston, TX 77251 USA
[47] Rutgers State Univ, Piscataway, NJ 08854 USA
[48] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
[49] South China Normal Univ, Guangzhou 510631, Guangdong, Peoples R China
[50] Sejong Univ, Seoul 05006, South Korea
基金
中国国家自然科学基金; 日本学术振兴会; 新加坡国家研究基金会; 美国国家科学基金会;
关键词
HEAVY-ION COLLISIONS; QCD; FLUCTUATIONS; COALESCENCE; PERSPECTIVE; TRANSITION; DEUTERONS; HADRONS; SEARCH; MATTER;
D O I
10.1103/PhysRevC.110.054911
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 systematic measurement of protons and light nuclei production in Au+Au collisions at root s(NN) = 3 GeV by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The transverse momentum (p(T)) spectra of protons (p), deuterons (d), tritons (t), He-3, and He-4 have been measured from midrapidity to target rapidity for different collision centralities. We present the rapidity and centrality dependence of particle yields (dN/dy), average transverse momentum (< p(T)>), yield ratios (d/p, t/p, He-3/p, He-4/p), as well as the coalescence parameters (B-2, B-3). The 4 pi yields for various particles are determined by utilizing the measured rapidity distributions, dN/dy. Furthermore, we present the energy, centrality, and rapidity dependence of the compound yield ratios (N-p x N-t/N-d(2)) and compare them with various model calculations. The physics implications of these results on the production mechanism of light nuclei and the QCD phase structure are discussed.
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页数:19
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