Energy dependence of acceptance-corrected dielectron excess mass spectrum at mid-rapidity in Au plus Au collisions at root(NN)-N-S=19.6 and 200 GeV
文献类型：期刊论文
| 作者 | Adamczyk, L.1; Adkins, J. K.21; Agakishiev, G.19; Aggarwal, M. M.32; Ahammed, Z.48; Alekseev, I.17; Alford, J.20; Aparin, A.19; Arkhipkin, D.3; Aschenauer, E. C.3 |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2015-11-12 |
| 卷号 | 750页码:64-71 |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2015.08.044 |
| 英文摘要 | The acceptance-corrected dielectron excess mass spectra, where the known hadronic sources have been subtracted from the inclusive dielectron mass spectra, are reported for the first time at mid-rapidity vertical bar Y-ee vertical bar <1 in minimum-bias Au + Au collisions at root(NN)-N-S and 200 GeV. The excess mass spectra are consistently described by a model calculation with a broadened p spectral function for Mee <1.1 GeV/c2. The integrated dielectron excess yield at root(NN)-N-S= 19.6 GeV for 0.4 < M-ee <0.75 GeV/c(2), normalized to the charged particle multiplicity at mid-rapidity, has a value similar to that in In + In collisions at root(NN)-N-S = 17.3 GeV. For root(NN)-N-S = 200 GeV, the normalized excess yield in central collisions is higher than that at root(NN)-N-S = 17.3 GeV and increases from peripheral to central collisions. These measurements indicate that the lifetime of the hot, dense medium created in central Au + Au collisions at root(NN)-N-S = 200 GeV is longer than those in peripheral collisions and at lower energies. (C) 2015 The Authors. Published by Elsevier B.V. |
| WOS关键词 | NUCLEUS-NUCLEUS COLLISIONS ; RESISTIVE PLATE CHAMBERS ; QUARK-GLUON PLASMA ; CHIRAL RESTORATION ; CROSS-SECTIONS ; CERN-SPS ; STAR ; DILEPTONS ; MATTER ; COLLABORATION |
| 资助项目 | RHIC Operations Group ; RCF at BNL ; NERSC Center at LBNL ; KISTI Center in Korea ; Open Science Grid consortium ; Office of NP within the U.S. DOE Office of Science ; Office of HEP within the U.S. DOE Office of Science ; U.S. NSF ; CNRS/IN2P3 ; FAPESP CNPq of Brazil ; Ministry of Education and Science of the Russian Federation ; NNSFC ; CAS ; MOST ; MoE of China ; Korean Research Foundation ; GA of the Czech Republic ; MSMT of the Czech Republic ; FIAS of Germany ; DAE ; DST ; CSIR of India ; National Science Centre of Poland ; National Research Foundation[NRF-2012004024] ; Ministry of Science, Education and Sports of the Republic of Croatia ; RosAtom of Russia |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000364250600013 |
| 资助机构 | RHIC Operations Group ; RCF at BNL ; NERSC Center at LBNL ; KISTI Center in Korea ; Open Science Grid consortium ; Office of NP within the U.S. DOE Office of Science ; Office of HEP within the U.S. DOE Office of Science ; U.S. NSF ; CNRS/IN2P3 ; FAPESP CNPq of Brazil ; Ministry of Education and Science of the Russian Federation ; NNSFC ; CAS ; MOST ; MoE of China ; Korean Research Foundation ; GA of the Czech Republic ; MSMT of the Czech Republic ; FIAS of Germany ; DAE ; DST ; CSIR of India ; National Science Centre of Poland ; National Research Foundation ; Ministry of Science, Education and Sports of the Republic of Croatia ; RosAtom of Russia |
| 源URL | [http://119.78.100.186/handle/113462/41146]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Huang, B. |
| 作者单位 | 1.AGH Univ Sci & Technol, PL-30059 Krakow, Poland 2.Argonne Natl Lab, Argonne, IL 60439 USA 3.Brookhaven Natl Lab, Upton, NY 11973 USA 4.Univ Calif Berkeley, Berkeley, CA 94720 USA 5.Univ Calif Davis, Davis, CA 95616 USA 6.Univ Calif Los Angeles, Los Angeles, CA 90095 USA 7.Univ Estadual Campinas, BR-13131 Sao Paulo, Brazil 8.Cent China Normal Univ HZNU, Wuhan 430079, Peoples R China 9.Univ Illinois, Chicago, IL 60607 USA 10.Creighton Univ, Omaha, NE 68178 USA |
| 推荐引用方式 GB/T 7714 | Adamczyk, L.,Adkins, J. K.,Agakishiev, G.,et al. Energy dependence of acceptance-corrected dielectron excess mass spectrum at mid-rapidity in Au plus Au collisions at root(NN)-N-S=19.6 and 200 GeV[J]. PHYSICS LETTERS B,2015,750:64-71. |
| APA | Adamczyk, L..,Adkins, J. K..,Agakishiev, G..,Aggarwal, M. M..,Ahammed, Z..,...&Zyzak, M..(2015).Energy dependence of acceptance-corrected dielectron excess mass spectrum at mid-rapidity in Au plus Au collisions at root(NN)-N-S=19.6 and 200 GeV.PHYSICS LETTERS B,750,64-71. |
| MLA | Adamczyk, L.,et al."Energy dependence of acceptance-corrected dielectron excess mass spectrum at mid-rapidity in Au plus Au collisions at root(NN)-N-S=19.6 and 200 GeV".PHYSICS LETTERS B 750(2015):64-71. |
入库方式： OAI收割
来源：近代物理研究所
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