作者
BI Abelev, MM Aggarwal, Z Ahammed, BD Anderson, D Arkhipkin, GS Averichev, Y Bai, J Balewski, O Barannikova, LS Barnby, J Baudot, S Baumgart, DR Beavis, R Bellwied, F Benedosso, RR Betts, S Bhardwaj, A Bhasin, AK Bhati, H Bichsel, J Bielcik, J Bielcikova, B Biritz, LC Bland, M Bombara, BE Bonner, M Botje, J Bouchet, E Braidot, AV Brandin, E Bruna, S Bueltmann, TP Burton, M Bystersky, XZ Cai, H Caines, M Calderón De La Barca Sánchez, J Callner, O Catu, D Cebra, R Cendejas, MC Cervantes, Z Chajecki, P Chaloupka, S Chattopadhyay, HF Chen, JH Chen, JY Chen, J Cheng, M Cherney, A Chikanian, KE Choi, W Christie, SU Chung, RF Clarke, MJM Codrington, JP Coffin, TM Cormier, MR Cosentino, JG Cramer, HJ Crawford, D Das, S Dash, M Daugherity, C De Silva, TG Dedovich, M DePhillips, AA Derevschikov, R Derradi De Souza, L Didenko, P Djawotho, SM Dogra, X Dong, JL Drachenberg, JE Draper, F Du, JC Dunlop, MR Dutta Mazumdar, WR Edwards, LG Efimov, E Elhalhuli, M Elnimr, V Emelianov, J Engelage, G Eppley, B Erazmus, M Estienne, L Eun, P Fachini, R Fatemi, J Fedorisin, A Feng, P Filip, E Finch, V Fine, Y Fisyak, Carl A Gagliardi, L Gaillard, DR Gangadharan, MS Ganti, E Garcia-Solis, V Ghazikhanian, P Ghosh, YN Gorbunov, A Gordon, O Grebenyuk, D Grosnick, B Grube, SM Guertin, KSFF Guimaraes, A Gupta, N Gupta, W Guryn, B Haag, TJ Hallman, A Hamed, JW Harris, W He, M Heinz, S Heppelmann, B Hippolyte, A Hirsch, E Hjort, AM Hoffman, GW Hoffmann, DJ Hofman, RS Hollis, HZ Huang, TJ Humanic, G Igo, A Iordanova, P Jacobs, WW Jacobs, P Jakl, F Jin, PG Jones, J Joseph, EG Judd, S Kabana, K Kajimoto, K Kang, J Kapitan, M Kaplan, D Keane, A Kechechyan, D Kettler, V Yu Khodyrev, J Kiryluk, A Kisiel, SR Klein
发表日期
2009/3
期刊
Physical Review C—Nuclear Physics
卷号
79
期号
3
页码范围
034909
出版商
American Physical Society
简介
Identified charged-particle spectra of , , , and at midrapidity () measured by the method in the STAR (solenoidal tracker at the BNL Relativistic Heavy Ion Collider) time projection chamber are reported for and collisions at GeV and for collisions at 62.4, 130, and 200 GeV. Average transverse momenta, total particle production, particle yield ratios, strangeness, and baryon production rates are investigated as a function of the collision system and centrality. The transverse momentum spectra are found to be flatter for heavy particles than for light particles in all collision systems; the effect is more prominent for more central collisions. The extracted average transverse momentum of each particle species follows a trend determined by the total charged-particle multiplicity density. The Bjorken energy density estimate is at least several GeV/ for a formation time less than 1 fm/. A significantly larger net-baryon …
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