Comparison of large-angle production of charged pions with incident protons on cylindrical long and short targets

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 22 Dec 2009Embargo end date: 01 Jan 2009 Italy, France, France, France, Germany, France, Turkey, France, United Kingdom, Belgium, Spain, Switzerland English Publisher:American Physical Society (APS)Journal:Physical Review C, volume 80 (issn: 0556-2813, eissn: 1089-490X,

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Authors: The HARP Collaboration; Apollonio, M.; Artamonov, A.; Bagulya, A.; Barr, G.; Blondel, A.; Bobisut, F.; +67 Authors

doi: 10.1103/physrevc.80.065204 , 10.48550/arxiv.0909.0337

arXiv: 0909.0337

handle: 10550/49571 , 10261/24530 , 11588/366326 , 2078/32007 , 11577/2377918 , 2108/102664 , 11590/124545 , 20.500.12605/12353 , 20.500.12605/36373 , 2307/372

Comparison of large-angle production of charged pions with incident protons on cylindrical long and short targets

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Abstract

The HARP collaboration has presented measurements of the double-differential pi+/pi- production cross-section in the range of momentum 100 MeV/c <= p 800 MeV/c and angle 0.35 rad <= theta <= 2.15 rad with proton beams hitting thin nuclear targets. In many applications the extrapolation to long targets is necessary. In this paper the analysis of data taken with long (one interaction length) solid cylindrical targets made of carbon, tantalum and lead is presented. The data were taken with the large acceptance HARP detector in the T9 beam line of the CERN PS. The secondary pions were produced by beams of protons with momenta 5 GeV/c, 8 GeV/c and 12 GeV/c. The tracking and identification of the produced particles were performed using a small-radius cylindrical time projection chamber (TPC) placed inside a solenoidal magnet. Incident protons were identified by an elaborate system of beam detectors. Results are obtained for the double-differential yields per target nucleon d2 sigma / dp dtheta. The measurements are compared with predictions of the MARS and GEANT4 Monte Carlo simulations.

43 pages, 20 figures

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Italy, France, France, France, Germany, France, Turkey, France, United Kingdom, Belgium, Spain, Switzerland

Related Organizations

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Keywords

HARP EXPERIMENT, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Settori Disciplinari MIUR::Scienze fisiche::FISICA NUCLEARE E SUBNUCLEARE, GEV/C PROTONS, FOS: Physical sciences, PHYSICS PERFORMANCE, BIOLOGIA E MEDICINA), 530, Categorie ISI-CRUI::Scienze fisiche::Physics, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), AMBIENTALI, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ATMOSPHERIC NEUTRINO FLUX, info:eu-repo/classification/ddc/530, ddc:500.2, CALIBRATION, CERN PS, PIONS, Physics, OF-FLIGHT SYSTEM, ddc:530, Settore FIS/07 - FISICA APPLICATA (A BENI CULTURALI, 500, Física, POSITIVE, PRODUCTION CROSS-SECTION, Scienze fisiche, PI(+/-), 500.2, ddc: ddc:500.2

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