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. 2002 Aug 26;89(9):092302.
doi: 10.1103/PhysRevLett.89.092302. Epub 2002 Aug 12.

Measurement of Lambda and Lambda(macro) particles in Au+Au collisions at the square root of S(NN) = 130 GeV

K Adcox  1 , S S Adler, N N Ajitanand, Y Akiba, J Alexander, L Aphecetche, Y Arai, S H Aronson, R Averbeck, T C Awes, K N Barish, P D Barnes, J Barrette, B Bassalleck, S Bathe, V Baublis, A Bazilevsky, S Belikov, F G Bellaiche, S T Belyaev, M J Bennett, Y Berdnikov, S Botelho, M L Brooks, D S Brown, N Bruner, D Bucher, H Buesching, V Bumazhnov, G Bunce, J Burward-Hoy, S Butsyk, T A Carey, P Chand, J Chang, W C Chang, L L Chavez, S Chernichenko, C Y Chi, J Chiba, M Chiu, R K Choudhury, T Christ, T Chujo, M S Chung, P Chung, V Cianciolo, B A Cole, D G D'Enterria, G David, H Delagrange, A Denisov, A Deshpande, E J Desmond, O Dietzsch, B V Dinesh, A Drees, A Durum, D Dutta, K Ebisu, Y V Efremenko, K el-Chenawi, H En'yo, S Esumi, L Ewell, T Ferdousi, D E Fields, S L Fokin, Z Fraenkel, A Franz, A D Frawley, S-Y Fung, S Garpman, T K Ghosh, A Glenn, A L Godoi, Y Goto, S V Greene, M Grosse Perdekamp, S K Gupta, W Guryn, H-A Gustafsson, J S Haggerty, H Hamagaki, A G Hansen, H Hara, E P Hartouni, R Hayano, N Hayashi, X He, T K Hemmick, J M Heuser, M Hibino, J C Hill, D S Ho, K Homma, B Hong, A Hoover, T Ichihara, K Imai, M S Ippolitov, M Ishihara, B V Jacak, W Y Jang, J Jia, B M Johnson, S C Johnson, K S Joo, S Kametani, J H Kang, M Kann, S S Kapoor, S Kelly, B Khachaturov, A Khanzadeev, J Kikuchi, D J Kim, H J Kim, S Y Kim, Y G Kim, W W Kinnison, E Kistenev, A Kiyomichi, C Klein-Boesing, S Klinksiek, L Kochenda, V Kochetkov, D Koehler, T Kohama, D Kotchetkov, A Kozlov, P J Kroon, K Kurita, M J Kweon, Y Kwon, G S Kyle, R Lacey, J G Lajoie, J Lauret, A Lebedev, D M Lee, M J Leitch, X H Li, Z Li, D J Lim, M X Liu, X Liu, Z Liu, C F Maguire, J Mahon, Y I Makdisi, V I Manko, Y Mao, S K Mark, S Markacs, G Martinez, M D Marx, A Masaike, F Matathias, T Matsumoto, P L McGaughey, E Melnikov, M Merschmeyer, F Messer, M Messer, Y Miake, 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, Y Nagasaka, J L Nagle, Y Nakada, B K Nandi, J Newby, L Nikkinen, P Nilsson, S Nishimura, A S Nyanin, J Nystrand, E O'Brien, C A Ogilvie, H Ohnishi, I D Ojha, M Ono, V Onuchin, A Oskarsson, L Osterman, I Otterlund, K Oyama, L Paffrath, D Pal, A P T Palounek, V S Pantuev, V Papavassiliou, S F Pate, T Peitzmann, A N Petridis, C Pinkenburg, R P Pisani, P Pitukhin, F Plasil, M Pollack, K Pope, M L Purschke, I Ravinovich, K F Read, K Reygers, V Riabov, Y Riabov, M Rosati, A A Rose, S S Ryu, N Saito, A Sakaguchi, T Sakaguchi, H Sako, T Sakuma, V Samsonov, T C Sangster, R Santo, H D Sato, S Sato, S Sawada, B R Schlei, Y Schutz, V Semenov, R Seto, T K Shea, I Shein, T-A Shibata, K Shigaki, T Shiina, Y H Shin, I G Sibiriak, D Silvermyr, K S Sim, J Simon-Gillo, C P Singh, V Singh, M Sivertz, A Soldatov, R A Soltz, S Sorensen, P W Stankus, N Starinsky, P Steinberg, E Stenlund, A Ster, S P Stoll, M Sugioka, T Sugitate, J P Sullivan, Y Sumi, Z Sun, M Suzuki, E M Takagui, A Taketani, M Tamai, K H Tanaka, Y Tanaka, E Taniguchi, M J Tannenbaum, J Thomas, J H Thomas, T L Thomas, W Tian, J Tojo, H Torii, R S Towell, I Tserruya, H Tsuruoka, A A Tsvetkov, S K Tuli, H Tydesjö, N Tyurin, T Ushiroda, H W Van Hecke, C Velissaris, J Velkovska, M Velkovsky, A A Vinogradov, M A Volkov, A Vorobyov, E Vznuzdaev, H Wang, Y Watanabe, S N White, C Witzig, F K Wohn, C L Woody, W Xie, K Yagi, S Yokkaichi, G R Young, I E Yushmanov, W A Zajc, Z Zhang, S Zhou, S Zhou; PHENIX Collaboration
Affiliations

Measurement of Lambda and Lambda(macro) particles in Au+Au collisions at the square root of S(NN) = 130 GeV

K Adcox et al. Phys Rev Lett. .

Abstract

We present results on the measurement of Lambda and Lambda(macro) production in Au+Au collisions at square root of (S (NN) = 130 GeV with the PHENIX detector at the Relativistic Heavy Ion Collider. The transverse momentum spectra were measured for minimum bias and for the 5% most central events. The Lambda;/Lambda ratios are constant as a function of p(T) and the number of participants. The measured net Lambda density is significantly larger than predicted by models based on hadronic strings (e.g., HIJING) but in approximate agreement with models which include the gluon-junction mechanism.

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