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Aggarwal, M M; Ahammed, Z; Angelis, A L S; Antonenko, V; Astakhov, V; Avdeitchikov, V; Baba, P V K S; Badyal, S K; Bathe, S; Batiounia, B; Baumann, C; Bhalla, K B; Blume, C; Bucher, D; Büsching, H; Carlén, L; Chattopadhyay, S; Decowski, M P; Donni, P; Majumdar, M R Dutta; El Chenawi, K; Dubey, A K; Enosawa, K; Fokin, S; Frolov, V; Ganti, M S; Garpman, S; Gavrishchuk, O; Geurts, F J M; Ghosh, T K; Guskov, B; Gustafsson, H A; Gutbrod, H H; Ippolitov, M; Kalechofsky, H; Kamermans, R; Karadjev, K; Karpio, K; Kolb, B W; Koutcheryaev, I; Kurata, M; Lebedev, A; Löhner, H; Mahapatra, D P; Manko, V; Martin, M; Martínez, G; Maximov, A; Mora, M-J; Morrison, D; Mukhanova, T; Mukhopadhyay, D S; Naef, H; Nandi, B K; Nayak, S K; Nayak, T K; Nikitine, V; Nilsson, P; Nishimura, S; Nystrand, J; Oskarsson, A; Otterlund, I; Pavliouk, S; Peitzmann, T; Peressounko, D; Petracek, V; Phatak, S C; Pinganaud, W; Purschke, M L; Rak, J; Rammler, M; Raniwala, R; Rao, N K; Roland, G; Roufanov, I; Sambyal, S S; Santo, R; Schlagheck, H; Schmidt, H-R; Shabratova, G; Shah, T H; Siemiarczuk, T; Silvermyr, D; Sinha, B C; Slavine, N; Söderström, K; Sood, G; Sørensen, S P; Stefanek, G; Steinberg, P; Tsvetkov, A; Tykarski, L; V D Pijll, E C; V Eijndhoven, N; V Nieuwenhuizen, G J; Vinogradov, A; Viyogi, Y P; Vodopianov, A; Vörös, S; Young, G R
Physical review letters, 2008-Jun-20, 20080620, Letnik: 100, Številka: 24Journal Article
Neutral pion transverse momentum spectra were measured in p+C and p+Pb collisions at sqrtS{NN}=17.4 GeV at midrapidity (2.3 less than or approximately equal eta{lab} less than or approximately equal 3.0) over the range 0.7 less than or approximately equal p{T} less than or approximately equal 3.5 GeV/c. The spectra are compared to pi{0} spectra measured in Pb+Pb collisions at sqrtS{NN}=17.3 GeV in the same experiment. For a wide range of Pb+Pb centralities (N{part} less than or approximately equal 300), the yield of pi{0}'s with p{T} greater than or approximately equal 2 GeV/c is larger than or consistent with the p+C or p+Pb yields scaled with the number of nucleon-nucleon collisions (N{coll}), while for central Pb+Pb collisions with N{part}greater than or approximately equal 350, the pi{0} yield is suppressed.
