V0 production in p+A collisions at s**(1/2) = 41.6-GeV

Abt, I.; Adams, M.; Agari, M.; Albrecht, H.; Aleksandrov, A.; Amaral, V.; Amorim, A.; Aplin, S. J.; Aushev, V.; Bagaturia, Y.; Balagura, V.; Bargiotti, M.; Barsukova, O.; Bastos, J.; Batista, J.; Bauer, C.; Bauer, T. H. S.; Belkov, A.; Belkov, A. R.; Belotelov, I.; Bertin, Antonio; Bobchenko, B.; Bocker, M.; Bogatyrev, A.; Bohm, G.; Brauer, M.; Bruinsma, M.; Bruschi, M.; Buchholz, P.; Buran, T.; Carvalho, J.; Conde, P.; Cruse, C.; Dam, M.; Danielsen, K. M.; Danilov, M.; DE CASTRO, Stefano; Deppe, H.; Dong, X.; Dreis, H. B.; Egorytchev, V.; Ehret, K.; Eisele, F.; Emeliyanov, D.; Erhan, S.; Essenov, S.; Fabbri, Laura; Faccioli, P.; FEUERSTACK RAIBLE, M.; Flammer, J.; Fominykh, B.; Funcke, M.; Garrido, L. L.; Gellrich, A.; Giacobbe, B.; Gla, J.; Goloubkov, D.; Golubkov, Y.; Golutvin, A.; Golutvin, I.; Gorbounov, I.; Gorisek, A.; Gouchtchine, O.; Goulart, D. C.; Gradl, S.; Gradl, W.; Grimaldi, F.; Guilitsky, Y. U.; Hansen, J. D.; Hernandez, J. M.; Hofmann, W.; Hohlmann, M.; Hott, T.; Hulsbergen, W.; Husemann, U.; Igonkina, O.; Ispiryan, M.; Jagla, T.; Jiang, C.; Kapitza, H.; Karabekyan, S.; Karpenko, N.; Keller, S.; Kessler, J.; Khasanov, F.; Kiryushin, Y. U.; Kisel, I.; Klinkby, E.; Knopfle, K. T.; Kolanoski, H.; Korpar, S.; Krauss, C.; Kreuzer, P.; Krizan, P.; Krucker, D.; Kupper, S.; Kvaratskheliia, T.; Lanyov, A.; Lau, K.; Lewendel, B.; Lohse, T.; Lomonosov, B.; Manner, R.; Mankel, R.; Masciocchi, S.; Massa, IGNAZIO GIACOMO; Matchikhilian, I.; Medin, G.; Medinnis, M.; Mevius, M.; Michetti, A.; Mikhailov, Y. U.; Mizuk, R.; Muresan, R.; ZUR NEDDEN, M.; Negodaev, M.; Norenberg, M.; Nowak, S.; NUNEZ PARDO DE VERA, M. T.; Ouchrif, M.; OULD SAADA, F.; Padilla, C.; Peralta, D.; Pernack, R.; Pestotnik, R.; Petersen, B. A.; Piccinini, Maurizio; Pleier, M. A.; Poli, M.; Popov, V.; Pose, D.; Prystupa, S.; Pugatch, V. M.; Pylypchenko, Y.; Pyrlik, J.; Reeves, K.; Reing, D.; Rick, H.; Riu, I.; Robmann, P.; Rostovtseva, I.; Rybnikov, V.; Sanchez, F.; Sbrizzi, Antonio; Schmelling, M.; Schmidt, B.; Schreiner, A.; Schroder, H.; Schwanke, U.; Schwartz, ALAN J.; Schwarz, ANDREAS S.; Schwenninger, B.; Schwingenheuer, B.; Sciacca, F.; SEMPRINI CESARI, Nicola; Shuvalov, S.; Silva, L.; Sozuer, L.; Solunin, S.; Somov, A.; Somov, S.; Spengler, J.; Spighi, R.; Spiridonov, A.; Stanovnik, A.; Stari, M.; #711, C; Stegmann, C.; Subramania, H. S.; Symalla, M.; Tikhomirov, I.; Titov, M.; Tsakov, I.; Uwer, U.; VAN ELDIK, C.; Vassiliev, Y. U.; Villa, Mauro; Vitale, Antonio; Vukotic, I.; Wahlberg, H.; Walenta, A. H.; Walter, . M.; Wang, J. J.; Wegener, D.; Werthenbach, U.; Wolters, H.; Wurth, R.; Wurz, A.; XELLA HANSEN, S.; Zaitsev, Y. U.; Zavertyaev, M.; Zeuner, T.; Zhelezov, A.; Zheng, Z.; Zimmermann, R.; #711, T.; Zoccoli, Antonio

doi:10.1140/epjc/s10052-009-1005-3

Inclusive doubly differential cross sections d^2sigma_{pA}/dx_Fdp_T^2 as a function of Feynman-x (x_F) and transverse momentum (p_T) for the production of K^0_s, Lambda^0 and anti-Lambda^0 in proton-nucleus interactions at 920 GeV are presented. The measurements were performed by HERA-B in the negative x_F range (-0.12<x_F<0.0) and for transverse momenta up to p_T= 1.6 GeV/c. Results for three target materials: carbon, titanium and tungsten are given. The ratios of production cross sections are presented and discussed. The Cronin effect is clearly observed for all three V^0 species. The atomic number dependence is parameterized as sigma_{pA} = sigma_{pN} cdot A^alpha where sigma_{pN} is the proton-nucleon cross section. The measured values of alpha are all near one. The results are compared with EPOS 1.67 and PYTHIA 6.3. EPOS reproduces the data to within approx 20% except at very low transverse momentum.

I. ABT, M.A., C, C.S., ZIVKO, A.Z. (2009). V0 production in p+A collisions at s**(1/2) = 41.6-GeV. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, C61, 207-221 [10.1140/epjc/s10052-009-1005-3].