Photon and Eta Production in p+Pb and p+C Collisions at $\sqrt{s_{NN}} = 17.4$ GeV

Measurements of direct photon production in p+Pb and p+C collisions at $\sqrt{s_{NN}}$=17.4 GeV are presented. Upper limits on the direct photon yield as a function of p_T are derived and compared to the results for Pb+Pb collisions at $\sqrt{s_{NN}}$=17.3 GeV. The production of the @h meson, which...

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Detalles Bibliográficos
Autores principales: Aggarwal, M.M., Ahammed, Z., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Bathe, S., Batiounia, B., Baumann, C., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bucher, D., Busching, H., Carlen, L., Chattopadhyay, S., Decowski, M.P., Delagrange, H., Donni, P., Majumdar, M.R.Dutta, El Chenawi, K., Dubey, A.K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M.S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Guskov, B., Gutbrod, H.H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Karadjev, K., Karpio, K., Kolb, B.W., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Miake, Y., Mishra, G.C., Mohanty, B., Mora, M.J., Morrison, D., Mukhanova, T., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Pavliouk, S., Peitzmann, T., Peressounko, D., Petracek, V., Phatak, S.C., Pinganaud, W., Plasil, F., Purschke, M.L., Rak, J., Rammler, M., Raniwala, R., Raniwala, S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Sood, G., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Tsvetkov, A., Tykarski, L., Pijll, E.C.v.d., Eijndhoven, N.v., Nieuwenhuizen, G.J.v., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Voros, S., Wyslouch, B., Young, G.R.
Lenguaje:eng
Publicado: 2011
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysa.2012.11.010
http://cds.cern.ch/record/1378164
Descripción
Sumario:Measurements of direct photon production in p+Pb and p+C collisions at $\sqrt{s_{NN}}$=17.4 GeV are presented. Upper limits on the direct photon yield as a function of p_T are derived and compared to the results for Pb+Pb collisions at $\sqrt{s_{NN}}$=17.3 GeV. The production of the @h meson, which is an important input to the direct photon signal extraction, has been determined in the @h->2@c channel for p+C collisions at $\sqrt{s_{NN}}$=17.4 GeV.

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