Strange and multistrange particle production in Au + Au collisions at [sqrt]sNN=62.4 GeV

Aggarwal, M.; Ahammed, Z.; Alakhverdyants, A.; Alekseev, I.; Alford, J.; Anderson, B.; Anson, C.; Arkhipkin, D.; Averichev, G.; Balewski, J.; Beavis, D.; Bellwied, R.; Betancourt, M.; Betts, R.; Bhasin, A.; Bhati, A.; Bichsel, H.; Bielcik, J.; Bielcikova, J.; Biritz, B.; Bland, L.; Borowski, W.; Bouchet, J.; Braidot, E.; Brandin, A.; Bridgeman, A.; Brovko, S.; Bruna, E.; Bueltmann, S.; Bunzarov, I.; Burton, T.; Cai, X.; Caines, H.; Calderón de la Barca Sánchez, M.; Cebra, D.; Cendejas, R.; Cervantes, M.; Chajecki, Z.; Chaloupka, P.; Chattopadhyay, S.; Chen, H.; Chen, J.; Chen, J.; Cheng, J.; Cherney, M.; Chikanian, A.; Choi, K.; Christie, W.; Chung, P.; Codrington, M.; Corliss, R.; Cramer, J.; Crawford, H.; Dash, S.; Davila Leyva, A.; De Silva, L.; Debbe, R.; Dedovich, T.; Derevschikov, A.; Derradi de Souza, R.; Didenko, L.; Djawotho, P.; Dogra, S.; Dong, X.; Drachenberg, J.; Draper, J.; Dunlop, J.; Dutta Mazumdar, M.; Efimov, L.; Elnimr, M.; Engelage, J.; Eppley, G.; Estienne, M.; Eun, L.; Evdokimov, O.; Fatemi, R.; Fedorisin, J.; Fersch, R.; Finch, E.; Fine, V.; Fisyak, Y.; Gagliardi, C.; Gangadharan, D.; Geromitsos, A.; Geurts, F.; Ghosh, P.; Gorbunov, Y.; Gordon, A.; Grebenyuk, O.; Grosnick, D.; Guertin, S.; Gupta, A.; Guryn, W.; Haag, B.; Hajkova, O.; Hamed, A.; Han, L-X.; Harris, J.; Hays-Wehle, J.; Heinz, M.; Heppelmann, S.; Hirsch, A.; Hjort, E.; Hoffmann, G.; Hofman, D.; Huang, B.; Huang, H.; Humanic, T.; Huo, L.; Igo, G.; Jacobs, P.; Jacobs, W.; Jena, C.; Jin, F.; Joseph, J.; Judd, E.; Kabana, S.; Kang, K.; Kapitan, J.; Kauder, K.; Keane, D.; Kechechyan, A.; Kettler, D.; Kikola, D.; Kiryluk, J.; Kisiel, A.; Kizka, V.; Klein, S.; Knospe, A.; Koetke, D.; Kollegger, T.; Konzer, J.; Koralt, I.; Koroleva, L.; Korsch, W.; Kotchenda, L.; Kouchpil, V.; Kravtsov, P.; Krueger, K.; Krus, M.; Kumar, L.; Kurnadi, P.; Lamont, M.; Landgraf, J.; LaPointe, S.; Lauret, J.; Lebedev, A.; Lednicky, R.; Lee, J.; Leight, W.; LeVine, M.; Li, C.; Li, L.; Li, N.; Li, W.; Li, X.; Li, X.; Li, Y.; Li, Z.; Lisa, M.; Liu, F.; Liu, H.; Liu, J.; Ljubicic, T.; Llope, W.; Longacre, R.; Love, W.; Lu, Y.; Lukashov, E.; Luo, X.; Ma, G.; Ma, Y.; Mahapatra, D.; Majka, R.; Mall, O.; Mangotra, L.; Manweiler, R.; Margetis, S.; Markert, C.; Masui, H.; Matis, H.; Matulenko, Yu.; McDonald, D.; McShane, T.; Meschanin, A.; Milner, R.; Minaev, N.; Mioduszewski, S.; Mischke, A.; Mitrovski, M.; Mohanty, B.; Mondal, M.; Morozov, B.; Morozov, D.; Munhoz, M.; Naglis, M.; Nandi, B.; Nayak, T.; Netrakanti, P.; Ng, M.; Nogach, L.; Nurushev, S.; Odyniec, G.; Ogawa, A.; Oh, K.; Ohlson, A.; Okorokov, V.; Oldag, E.; Olson, D.; Pachr, M.; Page, B.; Pal, S.; Pandit, Y.; Panebratsev, Y.; Pawlak, T.; Pei, H.; Peitzmann, T.; Perkins, C.; Peryt, W.; Phatak, S.; Pile, P.; Planinic, M.; Ploskon, M.; Pluta, J.; Plyku, D.; Poljak, N.; Poskanzer, A.; Potukuchi, B.; Powell, C.; Prindle, D.; Pruneau, C.; Pruthi, N.; Pujahari, P.; Putschke, J.; Qiu, H.; Raniwala, R.; Raniwala, S.; Ray, R.; Redwine, R.; Reed, R.; Ritter, H.; Roberts, J.; Rogachevskiy, O.; Romero, J.; Rose, A.; Ruan, L.; Rusnak, J.; Sakai, S.; Sakrejda, I.; Sakuma, T.; Salur, S.; Sandweiss, J.; Sangaline, E.; Schambach, J.; Scharenberg, R.; Schmah, A.; Schmitz, N.; Schuster, T.; Seele, J.; Seger, J.; Selyuzhenkov, I.; Seyboth, P.; Shahaliev, E.; Shao, M.; Sharma, M.; Shi, S.; Sichtermann, E.; Simon, F.; Singaraju, R.; Skoby, M.; Smirnov, N.; Sorensen, P.; Speltz, J.; Spinka, H.; Srivastava, B.; Stanislaus, T.; Staszak, D.; Steadman, S.; Stevens, J.; Stock, R.; Strikhanov, M.; Stringfellow, B.; Suaide, A.; Suarez, M.; Subba, N.; Sumbera, M.; Sun, X.; Sun, Y.; Sun, Z.; Surrow, B.; Svirida, D.; Symons, T.; Szanto de Toledo, A.; Takahashi, J.; Tang, A.; Tang, Z.; Tarini, L.; Tarnowsky, T.; Thein, D.; Thomas, J.; Tian, J.; Timmins, A.; Tlusty, D.; Tokarev, M.; Trainor, T.; Tram, V.; Trentalange, S.; Tribble, R.; Tribedy, P.; Tsai, O.; Ullrich, T.; Underwood, D.; Van Buren, G.; van Nieuwenhuizen, G.; Vanfossen, J.; Varma, R.; Vasconcelos, G.; Vasiliev, A.; Videbæk, F.; Viyogi, Y.; Vokal, S.; Voloshin, S.; Wada, M.; Walker, M.; Wang, F.; Wang, G.; Wang, H.; Wang, J.; Wang, Q.; Wang, X.; Wang, Y.; Webb, G.; Webb, J.; Westfall, G.; Whitten, C.; Wieman, H.; Wissink, S.; Witt, R.; Witzke, W.; Wu, Y.; Xie, W.; Xu, H.; Xu, N.; Xu, Q.; Xu, W.; Xu, Y.; Xu, Z.; Xue, L.; Yang, Y.; Yepes, P.; Yip, K.; Yoo, I-K.; Yue, Q.; Zawisza, M.; Zbroszczyk, H.; Zhan, W.; Zhang, J.; Zhang, S.; Zhang, W.; Zhang, X.; Zhang, Y.; Zhang, Z.; Zhao, J.; Zhong, C.; Zhou, W.; Zhu, X.; Zhu, Y.; Zoulkarneev, R.; Zoulkarneeva, Y.

Author(s)

Betancourt, Michael Joseph; Corliss, Ross Cameron; Hays-Wehle, James Prewitt; Leight, William Axel; Sakuma, Tai; ... Show more

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Alternative title

Strange and multistrange particle production in Au + Au collisions at √sNN=62.4 GeV

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Abstract

We present results on strange and multistrange particle production in Au + Au collisions at [sqrt]sNN=62.4 GeV as measured with the STAR detector at RHIC. Midrapidity transverse momentum spectra and integrated yields of KS0, Lambda, Xi, and Omega and their antiparticles are presented for different centrality classes. The particle yields and ratios follow a smooth energy dependence. Chemical freeze-out parameters, temperature, baryon chemical potential, and strangeness saturation factor obtained from the particle yields are presented. Intermediate transverse momentum (pT) phenomena are discussed based on the ratio of the measured baryon-to-meson spectra and nuclear modification factor. The centrality dependence of various measurements presented show a similar behavior as seen in Au + Au collisions at [sqrt]sNN=200 GeV.

Date issued

2011-02

URI

http://hdl.handle.net/1721.1/66109

Department

Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science

Journal

Physical Review C

Publisher

American Physical Society

Citation

Version: Final published version

ISSN

0556-2813

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