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Large-angle production of charged pions by 3 GeV/c - 12.9 GeV/c protons on beryllium, aluminium and lead targets

Abstract : Measurements of the double-differential π± production cross-section in the range of momentum 100 MeV/c≤p< 800 MeV/c and angle 0.35 rad ≤θ< 2.15 rad in proton-beryllium, proton-aluminium and proton-lead collisions are 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 12.9 GeV/c hitting a target with a thickness of 5% of a nuclear interaction length. The tracking and identification of the produced particles was performed using a small-radius cylindrical time projection chamber (TPC) placed inside a solenoidal magnet. Incident particles were identified by an elaborate system of beam detectors. Results are obtained for the double-differential cross-sections d2σ/dpdθ at six incident proton beam momenta (3 GeV/c, 5 GeV/c, 8 GeV/c, 8.9 GeV/c (Be only), 12 GeV/c and 12.9 GeV/c (Al only)) and compared to previously available data.
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http://hal.in2p3.fr/in2p3-00177825
Contributor : Dominique Girod <>
Submitted on : Tuesday, October 9, 2007 - 1:09:17 PM
Last modification on : Monday, December 14, 2020 - 9:54:48 AM

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M.G. Catanesi, E. Radicioni, R. Edgecock, M. Ellis, F.J.P. Soler, et al.. Large-angle production of charged pions by 3 GeV/c - 12.9 GeV/c protons on beryllium, aluminium and lead targets. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2008, 54, pp.37-60. ⟨10.1140/epjc/s10052-007-0517-y⟩. ⟨in2p3-00177825⟩

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