Inclusive production of charged pions in p+p collisions at 158-GeV/c beam momentum

Collaboration
Oct, 2005
54 pages
Published in:
  • Eur.Phys.J.C 45 (2006) 343-381
e-Print:
Experiments:

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Abstract:
New results on the production of charged pions 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. Pions are identified by energy loss measurement in a large TPC tracking system which covers a major fraction of the production phase space. Inclusive invariant cross sections are given on a grid of nearly 300 bins per charge over intervals from 0 to 2 GeV/c in transverse momentum and from 0 to 0.85 in Feynman x. The results are compared to existing data in overlapping energy ranges.
Note:
  • 54 pages, 54 figures, accepted for publication in EPJC
  • p p: inclusive reaction
  • pi: hadroproduction
  • yield: (pi+ pi-)
  • differential cross section: transverse momentum
  • x-dependence
  • rapidity spectrum
  • mass spectrum: transverse
  • energy dependence
  • magnetic spectrometer: experimental results
  • CERN SPS