Inclusive production of protons, anti-protons and neutrons in p+p collisions at 158 GeV/c beam momentum

New data on the production of protons, anti-protons and neutrons in p+p interactions are presented. The data come from a sample of 4.8 million inelastic events obtained with the NA49 detector at the CERN SPS at 158 GeV/c beam momentum. The charged baryons are identified by energy loss measurement in...

Descripción completa

Detalles Bibliográficos
Autores principales: Anticic, T., Baatar, B., Bartke, J., Betev, L., Bialkowska, H., Blume, C., Boimska, B., Bracinik, J., Cerny, V., Chvala, O., Dolejsi, J., Eckardt, V., Fischer, H.G., Fodor, Z., Foka, P., Friese, V., Gazdzicki, M., Hohne, C., Kadija, K., Karev, A., Kolesnikov, V., Kowalski, M., Kreps, M., Makariev, M., Malakhov, A., Mateev, M., Melkumov, G., Mitrovski, M., Mrowczynski, S., Renfordt, R., Rybczynski, M., Rybicki, A., Sandoval, A., Schmitz, N., Seyboth, P., Stefanek, G., Stock, R., Strobele, H., Susa, T., Szymanski, P., Trubnikov, V., Varga, D., Vesztergombi, G., Vranic, D., Wenig, S., Wlodarczyk, Z., Wojtaszek, A.
Lenguaje:eng
Publicado: 2009
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1140/epjc/s10052-009-1172-2
http://cds.cern.ch/record/1172595
Descripción
Sumario:New data on the production of protons, anti-protons and neutrons in p+p interactions are presented. The data come from a sample of 4.8 million inelastic events obtained with the NA49 detector at the CERN SPS at 158 GeV/c beam momentum. The charged baryons are identified by energy loss measurement in a large TPC tracking system. Neutrons are detected in a forward hadronic calorimeter. Inclusive invariant cross sections are obtained in intervals from 0 to 1.9 GeV/c (0 to 1.5 GeV/c) in transverse momentum and from -0.05 to 0.95 (-0.05 to 0.4) in Feynman x for protons (anti-protons), respectively. pT integrated neutron cross sections are given in the interval from 0.1 to 0.9 in Feynman x. The data are compared to a wide sample of existing results in the SPS and ISR energy ranges as well as to proton and neutron measurements from HERA and RHIC.

Ejemplares similares