Suppressed pi(0) production at large transverse momentum in central Au plus Au collisions at root s(NN)=200 GeV

SS Adler, S Afanasiev, C Aidala, NN Ajitanand, Y Akiba, J Alexander, R Amirikas, L Aphecetche, SH Aronson, R Averbeck, TC Awes, R Azmoun, V Babintsev, A Baldisseri, KN Barish, PD Barnes, B Bassalleck, S Bathe, S Batsouli, V BaublisA Bazilevsky, S Belikov, Y Berdnikov, S Bhagavatula, JG Boissevain, H Borel, S Borenstein, ML Brooks, DS Brown, N Bruner, D Bucher, H Buesching, V Bumazhnov, G Bunce, JM Burward-Hoy, S Butsyk, X Camard, JS Chai, P Chand, WC Chang, S Chernichenko, CY Chi, J Chiba, M Chiu, IJ Choi, J Choi, RK Choudhury, T Chujo, V Cianciolo, Y Cobigo, BA Cole, P Constantin, DG d'Enterria, G David, H Delagrange, A Denisov, A Deshpande, EJ Desmond, O Dietzsch, O Drapier, A Drees, KA Drees, Rickard du Rietz, A Durum, D Dutta, YV Efremenko, K El Chenawi, A Enokizono, H En'yo, S Esumi, L Ewell, DE Fields, F Fleuret, SL Fokin, BD Fox, Z Fraenkel, JE Frantz, A Franz, AD Frawley, SY Fung, Sten Garpman, TK Ghosh, A Glenn, G Gogiberidze, M Gonin, J Gosset, Y Goto, RG de Cassagnac, N Grau, SV Greene, MG Perdekamp, W Guryn, Hans-Åke Gustafsson, T Hachiya, JS Haggerty, H Hamagaki, AG Hansen, EP Hartouni, M Harvey, R Hayano, X He, M Heffner, TK Hemmick, JM Heuser, M Hibino, JC Hill, W Holzmann, K Homma, B Hong, A Hoover, T Ichihara, VV Ikonnikov, K Imai, L Isenhower, M Ishihara, M Issah, A Isupov, BV Jacak, WY Jang, Y Jeong, J Jia, O Jinnouchi, BM Johnson, SC Johnson, KS Joo, D Jouan, S Kametani, N Kamihara, JH Kang, SS Kapoor, K Katou, S Kelly, B Khachaturov, A Khanzadeev, J Kikuchi, DH Kim, DJ Kim, DW Kim, E Kim, GB Kim, HJ Kim, E Kistenev, A Kiyomichi, K Kiyoyama, C Klein-Boesing, H Kobayashi, L Kochenda, V Kochetkov, D Koehler, T Kohama, M Kopytine, D Kotchetkov, A Kozlov, PJ Kroon, CH Kuberg, K Kurita, Y Kuroki, MJ Kweon, Y Kwon, GS Kyle, R Lacey, V Ladygin, JG Lajoie, A Lebedev, S Leckey, DM Lee, S Lee, MJ Leitch, XH Li, H Lim, A Litvinenko, MX Liu, Y Liu, CF Maguire, YI Makdisi, A Malakhov, VI Manko, Y Mao, G Martinez, MD Marx, H Masui, F Matathias, T Matsumoto, PL McGaughey, E Melnikov, F Messer, Y Miake, J Milan, TE Miller, A Milov, S Mioduszewski, RE Mischke, GC Mishra, JT Mitchell, AK Mohanty, DP Morrison, JM Moss, F Muhlbacher, D Mukhopadhyay, M Muniruzzaman, J Murata, S Nagamiya, JL Nagle, T Nakamura, BK Nandi, M Nara, J Newby, Pål Nilsson, AS Nyanin, Joakim Nystrand, E O'Brien, CA Ogilvie, H Ohnishi, ID Ojha, K Okada, M Ono, V Onuchin, Anders Oskarsson, Ingvar Otterlund, K Oyama, K Ozawa, D Pal, APT Palounek, VS Pantuev, V Papavassiliou, J Park, A Parmar, SF Pate, T Peitzmann, JC Peng, V Peresedov, C Pinkenburg, RP Pisani, F Plasil, ML Purschke, AK Purwar, J Rak, I Ravinovich, KF Read, M Reuter, K Reygers, V Riabov, Y Riabov, G Roche, A Romana, M Rosati, P Rosnet, SS Ryu, ME Sadler, N Saito, T Sakaguchi, M Sakai, S Sakai, V Samsonov, L Sanfratello, R Santo, HD Sato, S Sato, S Sawada, Y Schutz, V Semenov, R Seto, MR Shaw, TK Shea, TA Shibata, K Shigaki, T Shiina, CL Silva, David Silvermyr, KS Sim, CP Singh, V Singh, M Sivertz, A Soldatov, RA Soltz, WE Sondheim, SP Sorensen, IV Sourikova, F Staley, PW Stankus, Evert Stenlund, M Stepanov, A Ster, SP Stoll, T Sugitate, JP Sullivan, EM Takagui, A Taketani, M Tamai, KH Tanaka, Y Tanaka, K Tanida, MJ Tannenbaum, P Tarjan, JD Tepe, TL Thomas, J Tojo, H Torii, RS Towell, I Tserruya, H Tsuruoka, SK Tuli, Henrik Tydesjö, N Tyurin, HW van Hecke, J Velkovska, M Velkovsky, L Villatte, AA Vinogradov, MA Volkov, E Vznuzdaev, XR Wang, Y Watanabe, SN White, FK Wohn, CL Woody, W Xie, Y Yang, A Yanovich, S Yokkaichi, GR Young, IE Yushmanov, WA Zajc, C Zhang, S Zhou, L Zolin

Research output: Contribution to journalArticlepeer-review

Abstract

Transverse momentum spectra of neutral pions in the range 1<p(T)<10 GeV/c have been measured at midrapidity by the PHENIX experiment at BNL RHIC in Au+Au collisions at roots(NN)=200 GeV. The pi(0) multiplicity in central reactions is significantly below the yields measured at the same roots(NN) in peripheral Au+Au and p+p reactions scaled by the number of nucleon-nucleon collisions. For the most central bin, the suppression factor is similar to2.5 at p(T)=2 GeV/c and increases to similar to4-5 at p(T)approximate to4 GeV/c. At larger p(T), the suppression remains constant within errors. The deficit is already apparent in semiperipheral reactions and increases smoothly with centrality.
Original languageEnglish
Article number072301
JournalPhysical Review Letters
Volume91
Issue number7: 072301
DOIs
Publication statusPublished - 2003

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Particle Physics (011013002), Physics, science (011013100)

Subject classification (UKÄ)

  • Subatomic Physics

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