V super(0) production in p+A collisions at $\sqrt{s}=41.6$ GeV

• Published in: The European physical journal. C, Particles and fields Vol. 61; no. 2; p. epjc.edpsciences.org/10.1140/epjc/s10052
• Main Authors: Abt, I, Adams, M, Aplin, S J, Aushev, V, Bagaturia, Y, Balagura, V, Bastos, J, Bauer, C, Bauer, ThS, Bertin, A, Bobchenko, B, Boecker, M, Bogatyrev, A, Bohm, G, Bruschi, M, Buran, T, Conde, P, Cruse, C, Danielsen, K M, Danilov, M, Castro, SDe, Dong, X, Ehret, K, Eisele, F, Emeliyanov, D, Flammer, J, Fominykh, B, Garrido, Ll, Glaess, J, Golubkov, Y, Gorbounov, I, Gouchtchine, O, Goulart, D C, Gradl, S, Gradl, W, Hansen, J D, Jagla, T, Kapitza, H, Karpenko, N, Keller, S, Kessler, J, Kiryushin, Yu, Kolanoski, H, Korpar, S, Krauss, C, Kruecker, D, Kupper, S, Lau, K, Maenner, R, Mankel, R, Masciocchi, S, Medin, G, Mevius, M, Michetti, A, Mikhailov, Yu, Mizuk, R, Muresan, R, Nedden, Mzur, Negodaev, M, Noerenberg, M, Nowak, S, Ouchrif, M, Ould-Saada, F, Petersen, BA, Piccinini, M, Pleier, MA, Popov, V, Pose, D, Pugatch, V, Pylypchenko, Y, Reeves, K, Ressing, D, Rostovtseva, I, Rybnikov, V, Sbrizzi, A, Schmidt, B, Schreiner, A, Schwanke, U, Schwingenheuer, B, Sciacca, F, Silva, L, Soezueer, L, Solunin, S, Spengler, J, Spighi, R, Stegmann, C, Symalla, M, Eldik, Cvan, Vassiliev, Yu, Walenta, AH, Wang, J J, Wegener, D, Werthenbach, U, Wolters, H, Wurth, R, Wurz, A, Zavertyaev, M, Zhelezov, A, Zheng, Z, Zimmermann, R
• Format: Journal Article
• Language: English
• Published: 01.05.2009
• Subjects: Atomic properties; Carbon; Collisions; Cross sections; Epos; Transverse momentum; Tungsten
• ISSN: 1434-6044; 1434-6052
• DOI: 10.1140/epjc/s10052-009-1005-3

Inclusive doubly differential cross sections d super(2) s sub(pA )/dx sub(F ) dp sub(T ) super(2) as a function of Feynman-x (x sub(F )) and transverse momentum (p sub(T )) for the production of K sub(S ) super(0) , and $\bar{\varLambda}$ in proton-nucleus interactions at 920 GeV are presented. The measurements were performed by HERA-B in the negative x sub(F )range (-0.12<x sub(F )<0.0) and for transverse momenta up to p sub(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 super(0) species. The atomic number dependence is parameterized as s sub(pA )=s sub(pN ); A super(a )where s sub(pN )is the proton-nucleon cross section. The measured values of a are all near one. The results are compared with EPOS 1.67 and PYTHIA 6.3. EPOS reproduces the data to within -20% except at very low transverse momentum.