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Large-angle production of charged pions with incident pion beams on nuclear targets

CollaborationWith : Blondel, Alain / Borghi, Silvia / Morone, Maria Cristina / Prior, Gersende / Schroeter, Raphaël
Published in Physical review. C. Nuclear physics. 2009, vol. 80, no. 06, 065207
Abstract Measurements of the double-differential π± production cross section in the range of momentum 100⩽p⩽800 MeV/c and angle 0.35⩽θ⩽2.15 rad using π± beams incident on beryllium, aluminum, carbon, copper, tin, tantalum, and lead targets are presented. The data were taken with the large-acceptance hadron production (HARP) detector in the T9 beam line of the CERN Proton Synchrotron. The secondary pions were produced by beams in a momentum range from 3 to 12.9GeV/c hitting a solid 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 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/dp dθ at six incident-beam momenta. Data at 3,5,8, and 12GeV/c are available for all targets, while additional data at 8.9 and 12.9GeV/c were taken in positive particle beams on Be and Al targets, respectively. The measurements are compared with several generators of GEANT4 and the MARS Monte Carlo simulation.
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HARP COLLABORATION. Large-angle production of charged pions with incident pion beams on nuclear targets. In: Physical review. C. Nuclear physics, 2009, vol. 80, n° 06, p. 065207. doi: 10.1103/PhysRevC.80.065207 https://archive-ouverte.unige.ch/unige:39665

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Deposited on : 2014-08-25

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