Absence of suppression in particle production at large transverse momentum in sqrt[s(NN)]=200 GeV d+Au collisions.

Journal: Physical Review Letters
Published:
Abstract

Transverse momentum spectra of charged hadrons with p(T)<8 GeV/c and neutral pions with p(T)<10 GeV/c have been measured at midrapidity by the PHENIX experiment at BNL RHIC in d+Au collisions at sqrt[s(NN)]=200 GeV. The measured yields are compared to those in p+p collisions at the same sqrt[s(NN)] scaled up by the number of underlying nucleon-nucleon collisions in d+Au. The yield ratio does not show the suppression observed in central Au+Au collisions at RHIC. Instead, there is a small enhancement in the yield of high momentum particles.

Authors
S Adler, S Afanasiev, C Aidala, N Ajitanand, Y Akiba, A Al Jamel, J Alexander, K Aoki, L Aphecetche, R Armendariz, S Aronson, R Averbeck, T Awes, V Babintsev, A Baldisseri, K Barish, P Barnes, B Bassalleck, S Bathe, S Batsouli, V Baublis, F Bauer, A Bazilevsky, S Belikov, M Bjorndal, J Boissevain, H Borel, M Brooks, D Brown, N Bruner, D Bucher, H Buesching, V Bumazhnov, G Bunce, J Burward Hoy, S Butsyk, X Camard, P Chand, W Chang, S Chernichenko, C Chi, J Chiba, M Chiu, I Choi, R Choudhury, T Chujo, V Cianciolo, Y Cobigo, B Cole, M Comets, P Constantin, M Csanád, T Csörgo, J Cussonneau, D D'enterria, K Das, G David, F Deák, H Delagrange, A Denisov, A Deshpande, E Desmond, A Devismes, O Dietzsch, J Drachenberg, O Drapier, A Drees, A Durum, D Dutta, V Dzhordzhadze, Y Efremenko, H En'yo, B Espagnon, S Esumi, D Fields, C Finck, F Fleuret, S Fokin, B Fox, Z Fraenkel, J Frantz, A Franz, A Frawley, Y Fukao, S-y Fung, S Gadrat, M Germain, A Glenn, M Gonin, J Gosset, Y Goto, R Granier De Cassagnac, N Grau, S Greene, M Grosse Perdekamp, H-a Gustafsson, T Hachiya, J Haggerty, H Hamagaki, A Hansen, E Hartouni, M Harvey, K Hasuko, R Hayano, X He, M Heffner, T Hemmick, J Heuser, P Hidas, H Hiejima, J Hill, R Hobbs, W Holzmann, K Homma, B Hong, A Hoover, T Horaguchi, T Ichihara, V Ikonnikov, K Imai, M Inuzuka, D Isenhower, L Isenhower, M Issah, A Isupov, B Jacak, J Jia, O Jinnouchi, B Johnson, S Johnson, K Joo, D Jouan, F Kajihara, S Kametani, N Kamihara, M Kaneta, J Kang, K Katou, T Kawabata, A Kazantsev, S Kelly, B Khachaturov, A Khanzadeev, J Kikuchi, D Kim, E Kim, G-b Kim, H Kim, E Kinney, A Kiss, E Kistenev, A Kiyomichi, C Klein Boesing, H Kobayashi, V Kochetkov, R Kohara, B Komkov, M Konno, D Kotchetkov, A Kozlov, P Kroon, C Kuberg, G Kunde, K Kurita, M Kweon, Y Kwon, G Kyle, R Lacey, J Lajoie, Y Le Bornec, A Lebedev, S Leckey, D Lee, M Leitch, M A Leite, X Li, X Li, H Lim, A Litvinenko, M Liu, C Maguire, Y Makdisi, A Malakhov, V Manko, Y Mao, G Martinez, H Masui, F Matathias, T Matsumoto, M Mccain, P Mcgaughey, Y Miake, T Miller, A Milov, S Mioduszewski, G Mishra, J Mitchell, A Mohanty, D Morrison, J Moss, D Mukhopadhyay, M Muniruzzaman, S Nagamiya, J Nagle, T Nakamura, J Newby, A Nyanin, J Nystrand, E O'brien, C Ogilvie, H Ohnishi, I Ojha, H Okada, K Okada, A Oskarsson, I Otterlund, K Oyama, K Ozawa, D Pal, A P Palounek, V Pantuev, V Papavassiliou, J Park, W Park, S Pate, H Pei, V Penev, J-c Peng, H Pereira, V Peresedov, A Pierson, C Pinkenburg, R Pisani, M Purschke, A Purwar, J Qualls, J Rak, I Ravinovich, K Read, M Reuter, K Reygers, V Riabov, Y Riabov, G Roche, A Romana, M Rosati, S Rosendahl, P Rosnet, V Rykov, S Ryu, N Saito, T Sakaguchi, S Sakai, V Samsonov, L Sanfratello, R Santo, H Sato, S Sato, S Sawada, Y Schutz, V Semenov, R Seto, T Shea, I Shein, T-a Shibata, K Shigaki, M Shimomura, A Sickles, C Silva, D Silvermyr, K Sim, A Soldatov, R Soltz, W Sondheim, S Sorensen, I Sourikova, F Staley, P Stankus, E Stenlund, M Stepanov, A Ster, S Stoll, T Sugitate, J Sullivan, S Takagi, E Takagui, A Taketani, K Tanaka, Y Tanaka, K Tanida, M Tannenbaum, A Taranenko, P Tarján, T Thomas, M Togawa, J Tojo, H Torii, R Towell, V-n Tram, I Tserruya, Y Tsuchimoto, H Tydesjö, N Tyurin, T Uam, H Van Hecke, J Velkovska, M Velkovsky, V Veszprémi, A Vinogradov, M Volkov, E Vznuzdaev, X Wang, Y Watanabe, S White, N Willis, F Wohn, C Woody, W Xie, A Yanovich, S Yokkaichi, G Young, I Yushmanov, W Zajc, C Zhang, S Zhou, J Zimányi, L Zolin, X Zong