Photon and neutral pion production in Au plus Au collisions at root s(NN)=130 GeV uri icon

abstract

  • 2004 The American Physical Society. We report inclusive photon measurements about midrapidity (|y|<0.5) from Au+197 Au197 collisions at sNN=130 GeV at RHIC. Photon pair conversions were reconstructed from electron and positron tracks measured with the Time Projection Chamber (TPC) of the STAR experiment. With this method, an energy resolution of E/E2% at 0.5 GeV has been achieved. Reconstructed photons have also been used to measure the transverse momentum (pt) spectra of 0 mesons about midrapidity (|y|<1) via the 0 decay channel. The fractional contribution of the 0 decay to the inclusive photon spectrum decreases by 20%5% between pt=1.65 GeV/c and pt=2.4 GeV/c in the most central events, indicating that relative to 0 decay the contribution of other photon sources is substantially increasing.

published proceedings

  • PHYSICAL REVIEW C

altmetric score

  • 0.5

author list (cited authors)

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

citation count

  • 17

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||Sanchez, MCD||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, X||Draper, JE||Du, F||Dubey, AK||Dunin, VB||Dunlop, JC||Majumdar, MRD||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||Ganti, MS||Gutierrez, TD||Gagunashvili, N||Gans, J||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||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||Johnson, I||Jones, PG||Judd, EG||Kabana, S||Kaneta, M||Kaplan, M||Keane, D||Kiryluk, J||Kisiel, A||Klay, J||Klein, SR||Klyachko, A||Koetke, DD||Kollegger, T||Konstantinov, AS||Kopytine, M||Kotchenda, L||Kovalenko, AD||Kramer, M||Kravtsov, P||Krueger, K||Kuhn, C||Kulikov, AI||Kumar, A||Kunde, GJ||Kunz, CL||Kutuev, RK||Kuznetsov, AA||Lamont, MAC||Landgraf, JM||Lange, S||Lansdell, CP||Lasiuk, B||Laue, F||Lauret, J||Lebedev, A||Lednicky, R||Leontiev, VM||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, YA||McShane, TS||Meissner, F||Melnick, Y||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, 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||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, AS||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||Yakutin, AE||Yamamoto, E||Yang, J||Yepes, P||Yurevich, VI||Zanevski, YV||Zborovsky, I||Zhang, H||Zhang, HY||Zhang, WM||Zhang, ZP||Zolnierczuk, PA||Zoulkarneev, R||Zoulkarneeva, J||Zubarev, AN

publication date

  • October 2004