Large-angle production of charged pions by 3 GeV/c-12 GeV/c protons on carbon, copper and tin targets

Abstract
A measurement of the double-differential pi(+/-) production cross-section in proton-carbon, proton-copper and proton-tin collisions in the range of pion momentum 100 MeV/c <= p <800 MeV/c and angle 0.35 rad <= theta < 2.15 rad is presented. The data were taken with the HARP detector in the T9 beam line of the CERN PS. The pions were produced by proton beams in a momentum range from 3 GeV/c to 12 GeV/c hitting a target with a thickness of 5% of a nuclear interaction length. The tracking and identification of the produced particles was done using a small-radius cylindrical time projection chamber (TPC) placed in a solenoidal magnet. An elaborate system of detectors in the beam line ensured the identification of the incident particles. Results are shown for the double-differential cross-sections d(2) sigma/dp d theta at four incident proton beam momenta (3 GeV/c, 5 GeV/c, 8 GeV/c and 12 GeV/c).
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Bibliographic reference
HARP Collaboration Catanesi, Maria Gabriella Burguet Castell, Jordi Cervera Villanueva, Anselmo Martín-Albo Simón, Justo Novella Garijo, Pau Sorel, Michel Tornero López, Ana María 2008 Large-angle production of charged pions by 3 GeV/c-12 GeV/c protons on carbon, copper and tin targets European Physical Journal C 53 2 177 204
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