학술논문

K*0 production in Cu+Cu and Au+Au collisions at \sqrt{s_NN} = 62.4 GeV and 200 GeV
Document Type
Working Paper
Author
Aggarwal, M. M.Ahammed, Z.Alakhverdyants, A. V.Alekseev, I.Alford, J.Anderson, B. D.Anson, DanielArkhipkin, D.Averichev, G. S.Balewski, J.Barnby, L. S.Baumgart, S.Beavis, D. R.Bellwied, R.Betancourt, M. J.Betts, R. R.Bhasin, A.Bhati, A. K.Bichsel, H.Bielcik, J.Bielcikova, J.Biritz, B.Bland, L. C.Bonner, B. E.Borowski, W.Bouchet, J.Braidot, E.Brandin, A. V.Bridgeman, A.Bruna, E.Bueltmann, S.Bunzarov, I.Burton, T. P.Cai, X. Z.Caines, H.Calderon, M.Catu, O.Cebra, D.Cendejas, R.Cervantes, M. C.Chajecki, Z.chaloupka, P.Chattopadhyay, S.Chen, H. F.Chen, J. H.Chen, J. Y.Cheng, J.Cherney, M.Chikanian, A.Choi, K. E.Christie, W.Chung, P.Clarke, R. F.Codrington, M. J. M.Corliss, R.Cramer, J. G.Crawford, H. J.Das, D.Dash, S.Leyva, A. DavilaDe Silva, L. C.Debbe, R. R.Dedovich, T. G.Derevschikov, A. A.de Souza, R. DerradiDidenko, L.Djawotho, P.Dogra, S. M.Dong, X.Drachenberg, J. L.Draper, J. E.Dunlop, J. C.Mazumdar, M. R. DuttaEfimov, L. G.Elhalhuli, E.Elnimr, M.Engelage, J.Eppley, G.Erazmus, B.Estienne, M.Eun, L.Evdokimov, O.Fachini, P.Fatemi, R.Fedorisin, J.Fersch, R. G.Filip, P.Finch, E.Fine, V.Fisyak, Y.Gagliardi, C. A.Gangadharan, D. R.Ganti, M. S.Garcia-Solis, E. J.Geromitsos, A.Geurts, F.Ghazikhanian, V.Ghosh, P.Gorbunov, Y. N.Gordon, A.Grebenyuk, O.Grosnick, D.Guertin, S. M.Gupta, A.Guryn, W.Haag, B.Hamed, A.Han, L-X.Harris, J. W.Hays-Wehle, J. P.Heinz, M.Heppelmann, S.Hirsch, A.Hjort, E.Hoffman, A. M.Hoffmann, G. W.Hofman, D. J.Huang, B.Huang, H. Z.Humanic, T. J.Huo, L.Igo, G.Jacobs, P.Jacobs, W. W.Jena, C.Jin, F.Jones, C. L.Jones, P. G.Joseph, J.Judd, E. G.Kabana, S.Kajimoto, K.Kang, K.Kapitan, J.Kauder, K.Keane, D.Kechechyan, A.Kettler, D.Kikola, D. P.Kiryluk, J.Kisiel, A.Kizka, V.Klein, S. R.Knospe, A. G.Kocoloski, A.Koetke, D. 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. A. C.Landgraf, J. M.LaPointe, S.Lauret, J.Lebedev, A.Lednicky, R.Lee, C-H.Lee, J. H.Leight, W.LeVine, M. J.Li, C.Li, L.Li, N.Li, W.Li, X.Li, Y.Li, Z. M.Lin, G.Lindenbaum, S. J.Lisa, M. A.Liu, F.Liu, H.Liu, J.Ljubicic, T.Llope, W. J.Longacre, R. S.Love, W. A.Lu, Y.Lukashov, E. V.Luo, X.Ma, G. L.Ma, Y. G.Mahapatra, D. P.Majka, R.Mall, O. I.Mangotra, L. K.Manweiler, R.Margetis, S.Markert, C.Masui, H.Matis, H. S.Matulenko, Yu. A.McDonald, D.McShane, T. S.Meschanin, A.Milner, R.Minaev, N. G.Mioduszewski, S.Mischke, A.Mitrovski, M. K.Mohanty, B.Mondal, M. M.Morozov, B.Morozov, D. A.Munhoz, M. G.Nandi, B. K.Nattrass, C.Nayak, T. K.Nelson, J. M.Netrakanti, P. K.Ng, M. J.Nogach, L. V.Nurushev, S. B.Odyniec, G.Ogawa, A.Okorokov, V.Oldag, E. W.Olson, D.Pachr, M.Page, B. S.Pal, S. K.Pandit, Y.Panebratsev, Y.Pawlak, T.Peitzmann, T.Perkins, C.Peryt, W.Phatak, S. C.Pile, P.Planinic, M.Ploskon, M. A.Pluta, J.Plyku, D.Poljak, N.Poskanzer, A. M.Potukuchi, B. V. K. S.Powell, C. B.Prindle, D.Pruneau, C.Pruthi, N. K.Pujahari, P. R.Putschke, J.Qiu, H.Raniwala, R.Raniwala, S.Ray, R. L.Redwine, R.Reed, R.Ritter, H. G.Roberts, J. B.Rogachevskiy, O. V.Romero, J. L.Rose, A.Roy, C.Ruan, L.Sahoo, R.Sakai, S.Sakrejda, I.Sakuma, T.Salur, S.Sandweiss, J.Sangaline, E.Schambach, J.Scharenberg, R. P.Schmitz, N.Schuster, T. R.Seele, J.Seger, J.Selyuzhenkov, I.Seyboth, P.Shahaliev, E.Shao, M.Sharma, M.Shi, S. S.Sichtermann, E. P.Simon, F.Singaraju, R. N.Skoby, M. J.Smirnov, N.Sorensen, P.Sowinski, J.Spinka, H. M.Srivastava, B.Stanislaus, T. D. S.Staszak, D.Stevens, J. R.Stock, R.Strikhanov, M.Stringfellow, B.Suaide, A. A. P.Suarez, M. C.Subba, N. L.Sumbera, M.Sun, X. M.Sun, Y.Sun, Z.Surrow, B.Svirida, D. N.Symons, T. J. M.de Toledo, A. SzantoTakahashi, J.Tang, A. H.Tang, Z.Tarini, L. H.Tarnowsky, T.Thein, D.Thomas, J. H.Tian, J.Timmins, A. R.Timoshenko, S.Tlusty, D.Tokarev, M.Trainor, T. A.Tram, V. N.Trentalange, S.Tribble, R. E.Tsai, O. D.Ulery, J.Ullrich, T.Underwood, D. G.Van Buren, G.van Leeuwen, M.van Nieuwenhuizen, G.Vanfossen, Jr., J. A.Varma, R.Vasconcelos, G. M. S.Vasiliev, A. N.Videbaek, F.Viyogi, Y. P.Vokal, S.Voloshin, S. A.Wada, M.Walker, M.Wang, F.Wang, G.Wang, H.Wang, J. S.Wang, Q.Wang, X. L.Wang, Y.Webb, G.Webb, J. C.Westfall, G. D.Whitten Jr., C.Wieman, H.Wissink, S. W.Witt, R.Wu, Y. F.Xie, W.Xu, H.Xu, N.Xu, Q. H.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. B.Zhang, S.Zhang, W. M.Zhang, X. P.Zhang, Y.Zhang, Z. P.Zhao, J.Zhong, C.Zhou, J.Zhou, W.Zhu, X.Zhu, Y. H.Zoulkarneev, R.Zoulkarneeva, Y.
Source
Subject
Nuclear Experiment
High Energy Physics - Experiment
Nuclear Theory
Language
Abstract
We report on K*0 production at mid-rapidity in Au+Au and Cu+Cu collisions at \sqrt{s_{NN}} = 62.4 and 200 GeV collected by the Solenoid Tracker at RHIC (STAR) detector. The K*0 is reconstructed via the hadronic decays K*0 \to K+ pi- and \bar{K*0} \to K-pi+. Transverse momentum, pT, spectra are measured over a range of pT extending from 0.2 GeV/c to 5 GeV/c. The center of mass energy and system size dependence of the rapidity density, dN/dy, and the average transverse momentum, , are presented. The measured N(K*0)/N(K) and N(\phi)/N(K*0) ratios favor the dominance of re-scattering of decay daughters of K*0 over the hadronic regeneration for the K*0 production. In the intermediate pT region (2.0 < pT < 4.0 GeV/c), the elliptic flow parameter, v2, and the nuclear modification factor, RCP, agree with the expectations from the quark coalescence model of particle production.
Comment: 14 pages and 13 figures