Center of mass energy and system-size dependence of photon production at forward rapidity at RHIC

0342821 - ÚJF 2011 RIV NL eng J - Journal Article
Abelev, B. I. - Aggarwal, M. M. - Ahammed, Z. - Alakhverdyants, A. V. - Anderson, B.D. - Arkhipkin, D. - Averichev, G. S. - Badyal, S. K. - Balewski, J. - Barannikova, O. - Barnby, L. S. - Baudot, J. - Baumgart, S. - Beavis, D.R. - Bellwied, R. - Benedosso, F. - Betancourt, M.J. - Betts, R. R. - Bhasin, A. - Bhati, A.K. - Bichsel, H. - Bielčík, Jaroslav - Bielčíková, Jana - Biritz, B. - Bland, L.C. - Bnzarov, I. - Bombara, M. - Bonner, B.E. - Bouchet, J. - Braidot, E. - Brandin, A.V. - Bruna, E. - Bueltmann, S. - Burton, T.P. - Bysterský, Michal - Cai, X.Z. - Caines, H. - Calderon, M. - Catu, O. - Cebra, D. - Cendejas, R. - Cervantes, M.C. - Chajecki, Z. - Chaloupka, Petr - Chattopadhyay, S. - Chen, H.F. - Chen, J.H. - Chen, J.Y. - Cheng, J. - Cherney, M. - Chikanian, A. - Choi, K.E. - Christie, W. - Clarke, R.F. - Codrington, M.J.M. - Corliss, R. - Cormier, T.M. - Cosentino, M.R. - Cramer, J. G. - Crawford, H. J. - Das, D. - Das, S. - Dash, S. - Daugherity, M. - De Silva, L.C. - Dedovich, T. G. - DePhillips, M. - Derevschikov, A.A. - de Souza, R.D. - Didenko, L. - Djawotho, P. - Dogra, S.M. - Dong, X. - Drachenberg, J.L. - Draper, J. E. - Dunlop, J.C. - Mazumdar, M.R.D. - Efimov, L.G. - Elhalhuli, E. - Elnimr, M. - Engelage, J. - Eppley, G. - Erazmus, B. - Estienne, M. - Eun, L. (ed.) - Fachini, P. - Fatemi, R. - Fedorisin, J. - Feng, A. - Filip, P. - Finch, E. - Fine, V. - Fisyak, Y. - Gagliardi, C. A. - Gaillard, L. - Gangaharan, 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. - Grube, B. - Guertin, S.M. - Guimaraes, K.S.F.F. - Gupta, A. - Gupta, N. - Guryn, W. - Haag, B. - Hallman, T.J. - Hamed, A. - Harris, J.W. - He, W. - Heinz, M. - Hepplemann, S. - Hippolyte, B. - Hirsch, A. - Hjort, E. - Hoffman, A.M. - Hoffmann, G.W. - Hofman, D.J. - Hollis, R.S. - Huang, H.Z. - Humanic, T.J. - Huo, L. - Igo, G. - Lordanova, A. - Jacobs, P. - Jacobs, W.W. - Jakl, Pavel - Jena, C. - Jin, F. - Jones, C.L. - Jones, P.G. - Joseph, J. - Judd, E.G. - Kabana, S. - Kajimoto, K. - Kang, K. - Kapitán, Jan - Kauder, K. - Keane, D. - Kechechyan, A. - Kettler, D. - Khodyrev, V.Yu. - Kikola, D.P. - Kiryluk, J. - Kisiel, A. - Klein, S.R. - Knospe, A.G. - Kocoloski, A. - Koetke, D.D. - Konzer, J. - Kopytine, M. - Koralt, I. - Korsch, W. - Kotchenda, L. - Kushpil, Vasilij - Kravtsov, P. - Kravtsov, V.I. - Krueger, K. - Krus, M. - Kuhn, C. - Kumar, L. - Kurnadi, P. - Lamont, M.A.C. - Landgraf, J.M. - LaPointe, S. - Lauret, J. - Lebedev, A. - Lednický, Richard - Lee, Ch. - Lee, J.H. - Leight, W. - LeVine, M.J. - Li, C. - Li, N. - Li, Y. - Lin, G. - Lindenbaum, S.J. - Lisa, M.A. - Liu, F. - Liu, H. - Liu, J. - Liu, L. - Ljubicic, T. - Llope, W.J. - Longacre, R.S. - Love, W.A. - Lu, Y. - Ludlam, T. - 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. - Millner, R. - Minaev, N.G. - Mioduszewski, S. - Mischke, A. - Mohanty, B. - Mondal, M.M. - 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. - Okada, H. - Okorokov, V. - Olson, D. - Pachr, M. - Page, B.S. - Pal, S.K. - Pandit, Y. - Panebratsev, Y. - Pawlak, T. - Peitzmann, T. - Perevoztchikov, V. - 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. - Prindle, D. - Pruneau, C. - Pruthi, N.K. - Pujahari, P.R. - Putschke, J. - Raniwala, R. - Raniwala, S. - Ray, R.L. - Redwine, R. - Reed, R. - Ridiger, A. - Ritter, H.G. - Roberts, J.B. - Rogachevskiy, O.V. - Romero, J.L. - Rose, A. - Roy, C. - Ruan, L. - Russcher, M.J. - Sahoo, R. - Sakai, S. - Sakrejda, I. - Sakuma, T. - Salur, S. - Sandweiss, J. - Sarsour, M. - Schambach, J. - Scharenberg, R.P. - Schmitz, N. - Seger, J. - Selyuzhenkov, I. - Seyboth, P. - Shabetai, A. - Shahaliev, E. - Shao, M. - Sharma, M. - Shi, S.S. - Shi, X.H. - 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. - Strikhanov, M. - Stringfellow, B. - Suaide, A.A.P. - Suarez, M.C. - Subba, N.L. - Šumbera, Michal - Sun, X.M. - Sun, Y. - Sun, Z. - Surrow, B. - Symons, T.J.M. - de Toledo, A. S. - Takahashi, J. - Tang, A.H. - Tang, Z. - Tarini, L.H. - Tarnowsky, T. - Thein, D. - Thomas, J.H. - Tian, J. - Timmins, A.R. - Timoshenko, S. - Tlustý, David - Tokarev, M. V. - Trainor, T.A. - Tram, V.N. - Trattner, A.L. - 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, J.A. - Varma, R. - Vasconcelos, G.M.S. - Vasiliev, A. N. - Videbaek, F. - Vigdor, S.E. - 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. - Wang, X.L. - Wang, Y. - Webb, G. - Westfall, G.D. - Whitten, C. - Wieman, H. - Wissink, S.W. - Witt, R. - Wu, Y. - Xie, W. - Xu, N. - Xu, Q.H. - Xu, Y. - Xu, Z. - Yang, Y. - Yepes, P. - Yip, K. - Yoo, K.-Y. - Yue, Q. - Zawisza, M. - Zbroszczyk, H. - Zhan, W. - Zhang, S. - Zhang, W.M. - Zhang, X.P. - Zhang, Y. - Zhang, Z.P. - Zhao, Y. - Zhong, C. - Zhou, J. - Zhu, X. - Zoulkarneev, R. - Zoulkarneeva, Y. - Zuo, J.X.
Center of mass energy and system-size dependence of photon production at forward rapidity at RHIC.
Nuclear Physics. A. Roč. 832, 1-2 (2010), s. 134-147. ISSN 0375-9474. E-ISSN 1873-1554
R&D Projects: GA ČR GA202/07/0079; GA MŠMT LA09013
Institutional research plan: CEZ:AV0Z10480505; CEZ:AV0Z10100502
Keywords : particle production * photons * forward rapidity
Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
Impact factor: 1.986, year: 2010

We present the multiplicity and pseudorapidity distributions of photons produced in Au + Au and Cu + Cu collisions at root(NN)-N-s = 62.4 and 200 GeV. The photons are measured in the region -3.7 < eta < -2.3 using the photon Multiplicity detector in the STAR experiment at RHIC. The number of photons produced per average number of participating nucleon pairs increases with the beam energy and is independent of (lie collision centrality. For collisions with similar average numbers of participating nucleons the photon multiplicities are observed to be similar for An + Au and Cu + Cu collisions at a given beam energy. The ratios of the number of charged particles to photons in the measured pseudorapidity range are found to be 1.4 +/- 0.1 and 1.2 +/- 0.1 for root(NN)-N-s = 62.4 and 200 GeV, respectively.
Permanent Link: http://hdl.handle.net/11104/0185447