$\Delta^{++}$ production in 158 A GeV $^{208}Pb+^{208}Pb$ interactions at the CERN SPS

The Delta /sup ++/-resonance production in central 158 A GeV /sup 208 /Pb+/sup 208/Pb collisions at the CERN SPS has been studied. The Delta /sup ++/ production was estimated from the invariant mass spectrum of p pi /sup +/-pairs by subtracting a mixed event background. The measured Delta /sup ++/ a...

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Detalles Bibliográficos
Autores principales: Aggarwal, M M, Agnihotri, A, Ahammed, Z, Angelis, Aris L S, Antonenko, V G, Arefev, V, Astakhov, V A, Avdeichikov, V, Awes, T C, Baba, P V K S, Badyal, S K, Baldin, A, Barabash, L, Barlag, C, Bathe, S, Batyunya, B, Bernier, T, Bhalla, K B, Bhatia, V S, Blume, C, Bock, R, Bohne, E M, Böröcz, Z K, Bucher, D, Buijs, A, Büsching, H, Carlén, L, Chalyshev, V, Chattopadhyay, S, Cherbachev, R, Chujo, T, Claussen, A, Das, A C, Decowski, M P, Delagrange, H, Dzhordzhadze, V, Dönni, P, Dubovik, I, Dutt, S K, Dutta-Majumdar, M R, El-Chenawi, K F, Eliseev, S, Enosawa, K, Foka, P Y, Fokin, S L, Frolov, V, Ganti, M S, Garpman, S I A, Gavrishchuk, O P, Geurts, F J M, Ghosh, T K, Glasow, R, Sen-Gupta, S K, Guskov, B, Gustafsson, Hans Åke, Gutbrod, H H, Higuchi, R, Hrivnacova, I, Ippolitov, M S, Kalechofsky, H, Kamermans, R, Kampert, K H, Karadzhev, K, Karpio, K, Kato, S, Kees, S, Kolb, B W, Kosarev, I G, Kucheryaev, I, Krümpel, T, Kugler, A, Kulinich, P A, Kurata, M, Kurita, K, Kuzmin, N A, Langbein, I, Lebedev, A, Lee, Y Y, Löhner, H, Luquin, Lionel, Mahapatra, D P, Man'ko, V I, Martin, M, Martínez, G, Maksimov, A, Mehdiyev, R, Mgebrishvili, G, Miake, Y, Mikhalev, D, Mir, M F, Mishra, G C, Miyamoto, Y, Mohanty, B, Morrison, D, Mukhopadhyay, D S, Myalkovskii, V, Naef, H, Nandi, B K, Nayak, S K, Nayak, T K, Neumaier, S, Nyanin, A, Nikitin, V A, Nikolaev, S, Nilsson, P O, Nishimura, S, Nomokonov, V P, Nystrand, J, Obenshain, F E, Oskarsson, A, Otterlund, I, Pachr, M, Parfenov, A, Pavlyuk, S, Peitzmann, Thomas, Petracek, V, Plasil, F, Pinganaud, W, Purschke, M L, Rak, J, Raniwala, R, Raniwala, S, Ramamurthy, V S, Rao, N K, Retière, F, Reygers, K, Roland, G, Rosselet, L, Rufanov, I A, Roy, C, Rubio, J M, Sako, H, Sambyal, S S, Santo, R, Sato, S, Schlagheck, H, Schmidt, H R, Schutz, Y, Shabratova, G, Shah, T H, Sibiryak, Yu, Siemiarczuk, T, Silvermyr, D, Sinha, B C, Slavin, N V, Söderström, K, Solomey, Nickolas, Sørensen, S P, Stankus, P, Stefanek, G, Steinberg, P, Stenlund, E, Stüken, D, Sumbera, M, Svensson, T, Trivedi, M D, Tsvetkov, A A, Tykarski, L, Urbahn, J, Van der Pijll, E C, van Eijndhoven, N, van Nieuwenhuizen, G J, Vinogradov, A, Viyogi, Y P, Vodopyanov, A S, Vörös, S, Wyslouch, B, Yagi, K, Yokota, Y, Young, G R
Lenguaje:eng
Publicado: 2000
Materias:
Nuclear Physics
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(00)00224-0
http://cds.cern.ch/record/443875
Descripción
Sumario:The Delta /sup ++/-resonance production in central 158 A GeV /sup 208 /Pb+/sup 208/Pb collisions at the CERN SPS has been studied. The Delta /sup ++/ production was estimated from the invariant mass spectrum of p pi /sup +/-pairs by subtracting a mixed event background. The measured Delta /sup ++/ abundance is compared with the results from other experiments at lower energies, and with a model calculation assuming thermal and chemical equilibrium. (19 refs).

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