Phys. Rev. C
77,
055207
(2008)
[49 pages]
Large-angle production of charged pions with 3–12.9 GeV/c incident protons on nuclear targets
M. G. Catanesi et al. HARP Collaboration
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M. G. Catanesi1, E. Radicioni1, R. Edgecock2, M. Ellis2,*, F. J. P. Soler2, C. Gößling3, S. Bunyatov4, A. Krasnoperov4, B. Popov4,†, V. Serdiouk4, V. Tereschenko4, E. Di Capua5, G. Vidal-Sitjes5,‡, A. Artamonov6,§, S. Giani6, S. Gilardoni6, P. Gorbunov6,§, A. Grant6, A. Grossheim6,**, A. Ivanchenko6,††, V. Ivanchenko6,‡‡, A. Kayis-Topaksu6,a, J. Panman6, I. Papadopoulos6, E. Tcherniaev6, I. Tsukerman6,§, R. Veenhof6, C. Wiebusch6,b, P. Zucchelli6,c, A. Blondel7, S. Borghi7, M. C. Morone7,d, G. Prior7,e, R. Schroeter7, C. Meurer8, U. Gastaldi9, G. B. Mills10,f, J. S. Graulich11,g, G. Grégoire11, M. Bonesini12,h, F. Ferri12, M. Kirsanov13, A. Bagulya14, V. Grichine14, N. Polukhina14, V. Palladino15, L. Coney16,f, D. Schmitz16,f, G. Barr17, A. De Santo17, F. Bobisut18, D. Gibin18, A. Guglielmi18, M. Mezzetto18, J. Dumarchez19, U. Dore20, D. Orestano21, F. Pastore21, A. Tonazzo21, L. Tortora21, C. Booth22, L. Howlett22, G. Skoro22, M. Bogomilov23, M. Chizhov23, D. Kolev23, R. Tsenov23, S. Piperov24, P. Temnikov24, M. Apollonio25, P. Chimenti25, G. Giannini25, J. Burguet-Castell26, A. Cervera-Villanueva26, J. J. Gómez-Cadenas26, J. Martín-Albo26, P. Novella26, M. Sorel26, and A. Tornero26 (HARP Collaboration)
1Sezione INFN, Bari, Italy
2Rutherford Appleton Laboratory, Chilton, Didcot, United Kingdom
3Institut für Physik, Universität Dortmund, Dortmund, Germany
4Joint Institute for Nuclear Research, JINR Dubna, Russia
5Università degli Studi e Sezione INFN, Ferrara, Italy
6CERN, Geneva, Switzerland
7Section de Physique, Université de Genève, Genève, Switzerland
8Institut für Physik, Forschungszentrum Karlsruhe, Karlsruhe, Germany
9Laboratori Nazionali di Legnaro dell' INFN, Legnaro, Italy
10Los Alamos National Laboratory, Los Alamos, New Mexico, USA
11Institut de Physique Nucléaire, UCL, Louvain-la-Neuve, Belgium
12Sezione INFN Milano Bicocca, Milano, Italy
13Institute for Nuclear Research, Moscow, Russia
14P. N. Lebedev Institute of Physics (FIAN), Russian Academy of Sciences, Moscow, Russia
15Università “Federico II” e Sezione INFN, Napoli, Italy
16Columbia University, New York, USA
17Nuclear and Astrophysics Laboratory, University of Oxford, Oxford, United Kingdom
18Università degli Studi e Sezione INFN, Padova, Italy
19LPNHE, Universités de Paris VI et VII, Paris, France
20Università “La Sapienza” e Sezione INFN Roma I, Roma, Italy
21Università degli Studi e Sezione INFN Roma Tre, Roma, Italy
22Department of Physics, University of Sheffield, Sheffield, United Kingdom
23Faculty of Physics, St. Kliment Ohridski University, Sofia, Bulgaria
24Institute for Nuclear Research and Nuclear Energy, Academy of Sciences, Sofia, Bulgaria
25Università degli Studi e Sezione INFN, Trieste, Italy
26Instituto de Física Corpuscular, IFIC, CSIC and Universidad de Valencia, Valencia, Spain
Received 27 December 2007; published 15 May 2008
Measurements of the double-differential π± production cross section in the momentum range 100⩽p⩽800 MeV/c and angle range 0.35⩽θ⩽2.15 rad in proton-beryllium, proton-carbon, proton-aluminium, proton-copper, proton-tin, proton-tantalum, and proton-lead collisions are presented. The data were taken with the large-acceptance HARP detector in the T9 beam line of the CERN PS. The pions were produced by proton beams in a momentum range from 3 to 12.9 GeV/c hitting a target with a thickness of 5% of a nuclear interaction length. Tracking and identification of the produced particles was performed by 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, 5, 8, and 8.9 GeV/c (Be only) and 12 and 12.9 GeV/c (Al only)]. They are based on a complete correction of static and dynamic distortions of tracks in the HARP TPC, which allows the complete statistics of the collected data set to be used. The results include and supersede our previously published results and are compatible with these. Results are compared with the GEANT4 and MARS Monte Carlo simulation.
© 2008 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevC.77.055207
DOI:
10.1103/PhysRevC.77.055207
*Now at FNAL, Batavia, Illinois, USA. †Also supported by LPNHE, Paris, France. ‡Now at Imperial College, University of London, United Kingdom. §ITEP, Moscow, Russian Federation. **Now at TRIUMF, Vancouver, Canada. ††On leave from Novosibirsk University, Russia. ‡‡On leave from Ecoanalitica, Moscow State University, Moscow, Russia. aNow at Çukurova University, Adana, Turkey. bNow at III Phys. Inst. B, RWTH Aachen, Germany. cNow at SpinX Technologies, Geneva, Switzerland; on leave from INFN, Sezione di Ferrara, Italy. dNow at University of Rome “Tor Vergata,” Italy. eNow at LBL, Berkeley, California, USA. fMiniBooNE Collaboration. gNow at Section de Physique, Université de Genève, Switzerland. hmaurizio.bonesini@mib.infn.it
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