Particle-type dependence of azimuthal anisotropy and nuclear modification of particle production in Au+Au collisions at square root of sNN=200 GeV. uri icon

abstract

  • We present STAR measurements of the azimuthal anisotropy parameter v(2) and the binary-collision scaled centrality ratio R(CP) for kaons and lambdas (Lambda+Lambda) at midrapidity in Au+Au collisions at square root of s(NN)=200 GeV. In combination, the v(2) and R(CP) particle-type dependencies contradict expectations from partonic energy loss followed by standard fragmentation in vacuum. We establish p(T) approximately 5 GeV/c as the value where the centrality dependent baryon enhancement ends. The K(0)(S) and Lambda+Lambda v(2) values are consistent with expectations of constituent-quark-number scaling from models of hadron formation by parton coalescence or recombination.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Adams, J., Adler, C., Aggarwal, M. M., Ahammed, Z., Amonett, J., Anderson, B. D., ... Zubarev, A. N.

citation count

  • 467

complete list of authors

  • Adams, J||Adler, C||Aggarwal, MM||Ahammed, Z||Amonett, J||Anderson, BD||Anderson, M||Arkhipkin, D||Averichev, GS||Badyal, SK||Balewski, J||Barannikova, O||Barnby, LS||Baudot, J||Bekele, S||Belaga, VV||Bellwied, R||Berger, J||Bezverkhny, BI||Bhardwaj, S||Bhaskar, P||Bhati, AK||Bichsel, H||Billmeier, A||Bland, LC||Blyth, CO||Bonner, BE||Botje, M||Boucham, A||Brandin, A||Bravar, A||Cadman, RV||Cai, XZ||Caines, H||Calderón de la Barca Sánchez, M||Carroll, J||Castillo, J||Castro, M||Cebra, D||Chaloupka, P||Chattopadhyay, S||Chen, HF||Chen, Y||Chernenko, SP||Cherney, M||Chikanian, A||Choi, B||Christie, W||Coffin, JP||Cormier, TM||Cramer, JG||Crawford, HJ||Das, D||Das, S||Derevschikov, AA||Didenko, L||Dietel, T||Dong, WJ||Dong, X||Draper, JE||Du, F||Dubey, AK||Dunin, VB||Dunlop, JC||Dutta Majumdar, MR||Eckardt, V||Efimov, LG||Emelianov, V||Engelage, J||Eppley, G||Erazmus, B||Estienne, M||Fachini, P||Faine, V||Faivre, J||Fatemi, R||Filimonov, K||Filip, P||Finch, E||Fisyak, Y||Flierl, D||Foley, KJ||Fu, J||Gagliardi, CA||Gagunashvili, N||Gans, J||Ganti, MS||Gaudichet, L||Germain, M||Geurts, F||Ghazikhanian, V||Ghosh, P||Gonzalez, JE||Grachov, O||Grigoriev, V||Gronstal, S||Grosnick, D||Guedon, M||Guertin, SM||Gupta, A||Gushin, E||Gutierrez, TD||Hallman, TJ||Hardtke, D||Harris, JW||Heinz, M||Henry, TW||Heppelmann, S||Herston, T||Hippolyte, B||Hirsch, A||Hjort, E||Hoffmann, GW||Horsley, M||Huang, HZ||Huang, SL||Humanic, TJ||Igo, G||Ishihara, A||Jacobs, P||Jacobs, WW||Janik, M||Jiang, H||Johnson, I||Jones, PG||Judd, EG||Kabana, S||Kaneta, M||Kaplan, M||Keane, D||Khodyrev, V Yu||Kiryluk, J||Kisiel, A||Klay, J||Klein, SR||Klyachko, A||Koetke, DD||Kollegger, T||Kopytine, M||Kotchenda, L||Kovalenko, AD||Kramer, M||Kravtsov, P||Kravtsov, VI||Krueger, K||Kuhn, C||Kulikov, AI||Kumar, A||Kunde, GJ||Kunz, CL||Kutuev, R Kh||Kuznetsov, AA||Lamont, MAC||Landgraf, JM||Lange, S||Lansdell, CP||Lasiuk, B||Laue, F||Lauret, J||Lebedev, A||Lednický, R||LeVine, MJ||Li, C||Li, Q||Lindenbaum, SJ||Lisa, MA||Liu, F||Liu, L||Liu, Z||Liu, QJ||Ljubicic, T||Llope, WJ||Long, H||Longacre, RS||Lopez-Noriega, M||Love, WA||Ludlam, T||Lynn, D||Ma, J||Ma, YG||Magestro, D||Mahajan, S||Mangotra, LK||Mahapatra, DP||Majka, R||Manweiler, R||Margetis, S||Markert, C||Martin, L||Marx, J||Matis, HS||Matulenko, Yu A||McShane, TS||Meissner, F||Melnick, Yu||Meschanin, A||Messer, M||Miller, ML||Milosevich, Z||Minaev, NG||Mironov, C||Mishra, D||Mitchell, J||Mohanty, B||Molnar, L||Moore, CF||Mora-Corral, MJ||Morozov, DA||Morozov, V||de Moura, MM||Munhoz, MG||Nandi, BK||Nayak, SK||Nayak, TK||Nelson, JM||Nevski, P||Nikitin, VA||Nogach, LV||Norman, B||Nurushev, SB||Odyniec, G||Ogawa, A||Okorokov, V||Oldenburg, M||Olson, D||Paic, G||Pandey, SU||Pal, SK||Panebratsev, Y||Panitkin, SY||Pavlinov, AI||Pawlak, T||Perevoztchikov, V||Perkins, C||Peryt, W||Petrov, VA||Phatak, SC||Picha, R||Planinic, M||Pluta, J||Porile, N||Porter, J||Poskanzer, AM||Potekhin, M||Potrebenikova, E||Potukuchi, BVKS||Prindle, D||Pruneau, C||Putschke, J||Rai, G||Rakness, G||Raniwala, R||Raniwala, S||Ravel, O||Ray, RL||Razin, SV||Reichhold, D||Reid, JG||Renault, G||Retiere, F||Ridiger, A||Ritter, HG||Roberts, JB||Rogachevski, OV||Romero, JL||Rose, A||Roy, C||Ruan, LJ||Sahoo, R||Sakrejda, I||Salur, S||Sandweiss, J||Savin, I||Schambach, J||Scharenberg, RP||Schmitz, N||Schroeder, LS||Schweda, K||Seger, J||Seliverstov, D||Seyboth, P||Shahaliev, E||Shao, M||Sharma, M||Shestermanov, KE||Shimanskii, SS||Singaraju, RN||Simon, F||Skoro, G||Smirnov, N||Snellings, R||Sood, G||Sorensen, P||Sowinski, J||Spinka, HM||Srivastava, B||Stanislaus, S||Stock, R||Stolpovsky, A||Strikhanov, M||Stringfellow, B||Struck, C||Suaide, AAP||Sugarbaker, E||Suire, C||Sumbera, M||Surrow, B||Symons, TJM||de Toledo, A Szanto||Szarwas, P||Tai, A||Takahashi, J||Tang, AH||Thein, D||Thomas, JH||Tikhomirov, V||Tokarev, M||Tonjes, MB||Trainor, TA||Trentalange, S||Tribble, RE||Trivedi, MD||Trofimov, V||Tsai, O||Ullrich, T||Underwood, DG||Van Buren, G||VanderMolen, AM||Vasiliev, AN||Vasiliev, M||Vigdor, SE||Viyogi, YP||Voloshin, SA||Waggoner, W||Wang, F||Wang, G||Wang, XL||Wang, ZM||Ward, H||Watson, JW||Wells, R||Westfall, GD||Whitten, C||Wieman, H||Willson, R||Wissink, SW||Witt, R||Wood, J||Wu, J||Xu, N||Xu, Z||Xu, ZZ||Yamamoto, E||Yepes, P||Yurevich, VI||Zanevski, YV||Zborovský, I||Zhang, H||Zhang, WM||Zhang, ZP||Zołnierczuk, PA||Zoulkarneev, R||Zoulkarneeva, J||Zubarev, AN

publication date

  • February 2004