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

  • The 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
Open AccessRegular Article - Experimental Physics

DOI: 10.1140/epjc/s10052-009-1172-2

Cite this article as:
The NA49 Collaboration, Anticic, T., Baatar, B. et al. Eur. Phys. J. C (2010) 65: 9. doi:10.1140/epjc/s10052-009-1172-2

Abstract

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.

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© Springer-Verlag / Società Italiana di Fisica 2009

Authors and Affiliations

  • The NA49 Collaboration
  • T. Anticic
    • 15
  • B. Baatar
    • 6
  • J. Bartke
    • 4
  • L. Betev
    • 8
  • H. Białkowska
    • 14
  • C. Blume
    • 7
  • B. Boimska
    • 14
  • J. Bracinik
    • 1
  • V. Cerny
    • 1
  • O. Chvala
    • 11
  • J. Dolejsi
    • 11
  • V. Eckardt
    • 10
  • H. G. Fischer
    • 8
  • Z. Fodor
    • 3
  • P. Foka
    • 5
  • V. Friese
    • 5
  • M. Gaździcki
    • 7
  • C. Höhne
    • 5
  • K. Kadija
    • 15
  • A. Karev
    • 8
  • V. Kolesnikov
    • 6
  • M. Kowalski
    • 4
  • M. Kreps
    • 1
  • M. Makariev
    • 13
  • A. Malakhov
    • 6
  • M. Mateev
    • 12
  • G. Melkumov
    • 6
  • M. Mitrovski
    • 7
  • S. Mrówczyński
    • 9
  • R. Renfordt
    • 7
  • M. Rybczyński
    • 9
  • A. Rybicki
    • 4
  • A. Sandoval
    • 5
  • N. Schmitz
    • 10
  • P. Seyboth
    • 10
  • G. Stefanek
    • 9
  • R. Stock
    • 7
  • H. Ströbele
    • 7
  • T. Susa
    • 15
  • P. Szymanski
    • 14
  • V. Trubnikov
    • 14
  • D. Varga
    • 2
  • G. Vesztergombi
    • 3
  • D. Vranić
    • 5
  • S. Wenig
    • 8
  • Z. Włodarczyk
    • 9
  • A. Wojtaszek
    • 9
  1. 1.Comenius UniversityBratislavaSlovakia
  2. 2.Eötvös Loránt UniversityBudapestHungary
  3. 3.KFKI Research Institute for Particle and Nuclear PhysicsBudapestHungary
  4. 4.H. Niewodniczański Institute of Nuclear PhysicsPolish Academy of SciencesCracowPoland
  5. 5.Gesellschaft für Schwerionenforschung (GSI)DarmstadtGermany
  6. 6.Joint Institute for Nuclear ResearchDubnaRussia
  7. 7.Fachbereich Physik der UniversitätFrankfurtGermany
  8. 8.CERNGenevaSwitzerland
  9. 9.Institute of Physics Świętokrzyska AcademyKielcePoland
  10. 10.Max-Planck-Institut für PhysikMunichGermany
  11. 11.Faculty of Mathematics and Physics, Institute of Particle and Nuclear PhysicsCharles UniversityPragueCzech Republic
  12. 12.Atomic Physics DepartmentSofia University St. Kliment OhridskiSofiaBulgaria
  13. 13.Institute for Nuclear Research and Nuclear EnergyBASSofiaBulgaria
  14. 14.Institute for Nuclear StudiesWarsawPoland
  15. 15.Rudjer Boskovic InstituteZagrebCroatia