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28 March 2024
 
  » arxiv » 0904.2708

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Inclusive production of protons, anti-protons and neutrons in p+p collisions at 158 GeV/c beam momentum
NA49 Collaboration ; T. Anticic ; B. Baatar ; J. Bartke ; L. Betev ; H. Białkowska ; C. Blume ; B. Boimska ; J. Bracinik ; V. Cerny ; O. Chvala ; J. Dolejsi ; V. Eckardt ; H. G. Fischer ; Z. Fodor ; P. Foka ; V. Friese ; M. Gaździcki ; C. Höhne ; K. Kadija ; A. Karev ; V. Kolesnikov ; M. Kowalski ; M. Kreps ; M. Makariev ; A. Malakhov ; M. Mateev ; G. Melkumov ; M. Mitrovski ; S. Mrówczyński ; R. Renfordt ; M. Rybczyński ; A. Rybicki ; A. Sandoval ; N. Schmitz ; P. Seyboth ; G. Stefanek ; R. Stock ; H. Ströbele ; T. Susa ; P. Szymanski ; V. Trubnikov ; D. Varga ; G. Vesztergombi ; D. Vranić ; S. Wenig ; Z. Włodarczyk ; A. Wojtaszek ;
Date 17 Apr 2009
AbstractNew 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.
Source arXiv, 0904.2708
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