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Phys Rev Lett. 2008 Aug 22;101(8):082301. doi: 10.1103/PhysRevLett.101.082301. Epub 2008 Aug 20.

Particle-species dependent modification of jet-induced correlations in Au+Au collisions at sqrt[s_{NN}]=200 GeV.

Physical review letters

S Afanasiev, C Aidala, N N Ajitanand, Y Akiba, J Alexander, A Al-Jamel, K Aoki, L Aphecetche, R Armendariz, S H Aronson, R Averbeck, T C Awes, B Azmoun, V Babintsev, A Baldisseri, K N Barish, P D Barnes, B Bassalleck, S Bathe, S Batsouli, V Baublis, F Bauer, A Bazilevsky, S Belikov, R Bennett, Y Berdnikov, M T Bjorndal, J G Boissevain, H Borel, K Boyle, M L Brooks, D S Brown, D Bucher, H Buesching, V Bumazhnov, G Bunce, J M Burward-Hoy, S Butsyk, S Campbell, J-S Chai, S Chernichenko, J Chiba, C Y Chi, M Chiu, I J Choi, T Chujo, V Cianciolo, C R Cleven, Y Cobigo, B A Cole, M P Comets, P Constantin, M Csanád, T Csörgo, T Dahms, K Das, G David, H Delagrange, A Denisov, D d'Enterria, A Deshpande, E J Desmond, O Dietzsch, A Dion, J L Drachenberg, O Drapier, A Drees, A K Dubey, A Durum, V Dzhordzhadze, Y V Efremenko, J Egdemir, A Enokizono, H En'yo, B Espagnon, S Esumi, D E Fields, F Fleuret, S L Fokin, B Forestier, Z Fraenkel, J E Frantz, A Franz, A D Frawley, Y Fukao, S-Y Fung, S Gadrat, F Gastineau, M Germain, A Glenn, M Gonin, J Gosset, Y Goto, R Granier de Cassagnac, N Grau, S V Greene, M Grosse Perdekamp, T Gunji, H-A Gustafsson, T Hachiya, A Hadj Henni, J S Haggerty, M N Hagiwara, H Hamagaki, H Harada, E P Hartouni, K Haruna, M Harvey, E Haslum, K Hasuko, R Hayano, M Heffner, T K Hemmick, J M Heuser, X He, H Hiejima, J C Hill, R Hobbs, M Holmes, W Holzmann, K Homma, B Hong, T Horaguchi, M G Hur, T Ichihara, K Imai, M Inaba, D Isenhower, L Isenhower, M Ishihara, T Isobe, M Issah, A Isupov, B V Jacak, J Jia, J Jin, O Jinnouchi, B M Johnson, K S Joo, D Jouan, F Kajihara, S Kametani, N Kamihara, M Kaneta, J H Kang, T Kawagishi, A V Kazantsev, S Kelly, A Khanzadeev, D J Kim, E Kim, Y-S Kim, E Kinney, A Kiss, E Kistenev, A Kiyomichi, C Klein-Boesing, L Kochenda, V Kochetkov, B Komkov, M Konno, D Kotchetkov, A Kozlov, P J Kroon, G J Kunde, N Kurihara, K Kurita, M J Kweon, Y Kwon, G S Kyle, R Lacey, J G Lajoie, A Lebedev, Y Le Bornec, S Leckey, D M Lee, M K Lee, M J Leitch, M A L Leite, H Lim, A Litvinenko, M X Liu, X H Li, C F Maguire, Y I Makdisi, A Malakhov, M D Malik, V I Manko, H Masui, F Matathias, M C McCain, P L McGaughey, Y Miake, T E Miller, A Milov, S Mioduszewski, G C Mishra, J T Mitchell, D P Morrison, J M Moss, T V Moukhanova, D Mukhopadhyay, J Murata, S Nagamiya, Y Nagata, J L Nagle, M Naglis, T Nakamura, J Newby, M Nguyen, B E Norman, A S Nyanin, J Nystrand, E O'Brien, C A Ogilvie, H Ohnishi, I D Ojha, H Okada, K Okada, O O Omiwade, A Oskarsson, I Otterlund, K Ozawa, D Pal, A P T Palounek, V Pantuev, V Papavassiliou, J Park, W J Park, S F Pate, H Pei, J-C Peng, H Pereira, V Peresedov, D Yu Peressounko, C Pinkenburg, R P Pisani, M L Purschke, A K Purwar, H Qu, J Rak, I Ravinovich, K F Read, M Reuter, K Reygers, V Riabov, Y Riabov, G Roche, A Romana, M Rosati, S S E Rosendahl, P Rosnet, P Rukoyatkin, V L Rykov, S S Ryu, B Sahlmueller, N Saito, T Sakaguchi, S Sakai, V Samsonov, H D Sato, S Sato, S Sawada, V Semenov, R Seto, D Sharma, T K Shea, I Shein, T-A Shibata, K Shigaki, M Shimomura, T Shohjoh, K Shoji, A Sickles, C L Silva, D Silvermyr, K S Sim, C P Singh, V Singh, S Skutnik, W C Smith, 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, C Suire, J P Sullivan, J Sziklai, T Tabaru, S Takagi, E M Takagui, A Taketani, K H Tanaka, Y Tanaka, K Tanida, M J Tannenbaum, A Taranenko, P Tarján, T L Thomas, M Togawa, J Tojo, H Torii, R S Towell, V-N Tram, I Tserruya, Y Tsuchimoto, S K Tuli, H Tydesjö, N Tyurin, C Vale, H Valle, H W van Hecke, J Velkovska, R Vertesi, A A Vinogradov, E Vznuzdaev, M Wagner, X R Wang, Y Watanabe, J Wessels, S N White, N Willis, D Winter, C L Woody, M Wysocki, W Xie, A Yanovich, S Yokkaichi, G R Young, I Younus, I E Yushmanov, W A Zajc, O Zaudtke, C Zhang, J Zimányi, L Zolin,

Affiliations

  1. Joint Institute for Nuclear Research, 141980 Dubna, Moscow Region, Russia.

PMID: 18764605 DOI: 10.1103/PhysRevLett.101.082301

Abstract

Measurements in Au+Au collisions at sqrt[s_{NN}]=200 GeV of jet correlations for a trigger hadron at intermediate transverse momentum (p_{T,trig}) with associated mesons or baryons at lower p_{T,assoc} indicate strong modification of the away-side jet. The ratio of jet-associated baryons to mesons increases with centrality and p_{T,assoc}. For the most central collisions, the ratio is similar to that for inclusive measurements. This trend is incompatible with in-vacuum fragmentation but could be due to jetlike contributions from correlated soft partons, which recombine upon hadronization.

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