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Phys Rev Lett. 2004 Oct 08;93(15):152302. doi: 10.1103/PhysRevLett.93.152302. Epub 2004 Oct 08.

Bose-Einstein correlations of charged pion pairs in Au + Au collisions at square root sNN = 200 GeV.

Physical review letters

S S Adler, S Afanasiev, C Aidala, N N Ajitanand, Y Akiba, J Alexander, R Amirikas, L Aphecetche, S H Aronson, R Averbeck, T C Awes, R Azmoun, V Babintsev, A Baldisseri, K N Barish, P D Barnes, B Bassalleck, S Bathe, S Batsouli, V Baublis, A Bazilevsky, S Belikov, Y Berdnikov, S Bhagavatula, J G Boissevain, H Borel, S Borenstein, M L Brooks, D S Brown, N Bruner, D Bucher, H Buesching, V Bumazhnov, G Bunce, J M Burward-Hoy, S Butsyk, X Camard, J-S Chai, P Chand, W C Chang, S Chernichenko, C Y Chi, J Chiba, M Chiu, I J Choi, J Choi, R K Choudhury, T Chujo, V Cianciolo, Y Cobigo, B A Cole, P Constantin, D G d'Enterria, G David, H Delagrange, A Denisov, A Deshpande, E J Desmond, O Dietzsch, O Drapier, A Drees, R du Rietz, A Durum, D Dutta, Y V Efremenko, K El Chenawi, A Enokizono, H En'yo, S Esumi, L Ewell, D E Fields, F Fleuret, S L Fokin, B D Fox, Z Fraenkel, J E Frantz, A Franz, A D Frawley, S-Y Fung, S Garpman, T K Ghosh, A Glenn, G Gogiberidze, M Gonin, J Gosset, Y Goto, R Granier de Cassagnac, N Grau, S V Greene, M Grosse Perdekamp, W Guryn, H-A Gustafsson, T Hachiya, J S Haggerty, H Hamagaki, A G Hansen, E P Hartouni, M Harvey, R Hayano, X He, M Heffner, T K Hemmick, J M Heuser, M Hibino, J C Hill, W Holzmann, K Homma, B Hong, A Hoover, T Ichihara, V V Ikonnikov, K Imai, D Isenhower, M Ishihara, M Issah, A Isupov, B V Jacak, W Y Jang, Y Jeong, J Jia, O Jinnouchi, B M Johnson, S C Johnson, K S Joo, D Jouan, S Kametani, N Kamihara, J H Kang, S S Kapoor, K Katou, S Kelly, B Khachaturov, A Khanzadeev, J Kikuchi, D H Kim, D J Kim, D W Kim, E Kim, G-B Kim, H J 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, P J Kroon, C H Kuberg, K Kurita, Y Kuroki, M J Kweon, Y Kwon, G S Kyle, R Lacey, V Ladygin, J G Lajoie, A Lebedev, S Leckey, D M Lee, S Lee, M J Leitch, X H Li, H Lim, A Litvinenko, M X Liu, Y Liu, C F Maguire, Y I Makdisi, A Malakhov, V I Manko, Y Mao, G Martinez, M D Marx, H Masui, F Matathias, T Matsumoto, P L McGaughey, E Melnikov, F Messer, Y Miake, J Milan, T E Miller, A Milov, S Mioduszewski, R E Mischke, G C Mishra, J T Mitchell, A K Mohanty, D P Morrison, J M Moss, F Mühlbacher, D Mukhopadhyay, M Muniruzzaman, J Murata, S Nagamiya, J L Nagle, T Nakamura, B K Nandi, M Nara, J Newby, P Nilsson, A S Nyanin, J Nystrand, E O'Brien, C A Ogilvie, H Ohnishi, I D Ojha, K Okada, M Ono, V Onuchin, A Oskarsson, I Otterlund, K Oyama, K Ozawa, D Pal, A P T Palounek, V S Pantuev, V Papavassiliou, J Park, A Parmar, S F Pate, T Peitzmann, J-C Peng, V Peresedov, C Pinkenburg, R P Pisani, F Plasil, M L Purschke, A K Purwar, J Rak, I Ravinovich, K F Read, M Reuter, K Reygers, V Riabov, Y Riabov, G Roche, A Romana, M Rosati, P Rosnet, S S Ryu, M E Sadler, N Saito, T Sakaguchi, M Sakai, S Sakai, V Samsonov, L Sanfratello, R Santo, H D Sato, S Sato, S Sawada, Y Schutz, V Semenov, R Seto, M R Shaw, T K Shea, T-A Shibata, K Shigaki, T Shiina, C L Silva, D Silvermyr, K S Sim, C P Singh, V Singh, M Sivertz, A Soldatov, R A Soltz, W E Sondheim, S P Sorensen, I V Sourikova, F Staley, P W Stankus, E Stenlund, M Stepanov, A Ster, S P Stoll, T Sugitate, J P Sullivan, E M Takagui, A Taketani, M Tamai, K H Tanaka, Y Tanaka, K Tanida, M J Tannenbaum, P Tarján, J D Tepe, T L Thomas, J Tojo, H Torii, R S Towell, I Tserruya, H Tsuruoka, S K Tuli, H Tydesjö, N Tyurin, H W van Hecke, J Velkovska, M Velkovsky, L Villatte, A A Vinogradov, M A Volkov, E Vznuzdaev, X R Wang, Y Watanabe, S N White, F K Wohn, C L Woody, W Xie, Y Yang, A Yanovich, S Yokkaichi, G R Young, I E Yushmanov, W A Zajc, C Zhang, S Zhou, S J Zhou, L Zolin,

Affiliations

  1. Brookhaven National Laboratory, Upton, New York 11973-5000, USA.

PMID: 15524868 DOI: 10.1103/PhysRevLett.93.152302

Abstract

Bose-Einstein correlations of identically charged pion pairs were measured by the PHENIX experiment at midrapidity in Au + Au collisions at square root s(NN)=200 GeV. The Bertsch-Pratt radius parameters were determined as a function of the transverse momentum of the pair and as a function of the centrality of the collision. Using the standard core-halo partial Coulomb fits, and a new parametrization which constrains the Coulomb fraction as determined from the unlike-sign pion correlation, the ratio R(out)/R(side) is within 0.8-1.1 for 0.25< <1.2 GeV/c. The centrality dependence of all radii is well described by a linear scaling in N(1/3)(part), and R(out)/R(side) for approximately 0.45 GeV/c is approximately constant at unity as a function of centrality.

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