158 articles – 1990 Notices  [english version]
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Astroparticle Physics 29 (2008) 257-281
Measurement of the production cross-sections of π in p C and π C interactions at 12 GeV/c
M. G. Catanesi, E. Radicioni, R. Edgecock, M. Ellis, S. Robbins, F. J. P. Soler, C. Gößling, S. Bunyatov, A. Krasnoperov, B. Popov, V. Tereshchenko, E. di Capua, G. Vidal-Sitjes, A. Artamonov, S. Giani, S. Gilardoni, P. Gorbunov, A. Grant, A. Grossheim, P. Gruber, V. Ivanchenko, A. Kayis-Topaksu, J. Panman, I. Papadopoulos, E. Tcherniaev, I. Tsukerman, R. Veenhof, C. Wiebusch, P. Zucchelli, A. Blondel, S. Borghi, M. Campanelli, M. C. Morone, G. Prior, R. Schroeter, R. Engel, C. Meurer, I. Kato, U. Gastaldi, G. B. Mills, J. S. Graulich, G. Grégoire, M. Bonesini, F. Ferri, M. Kirsanov, A. Bagulya, V. Grichine, N. Polukhina, V. Palladino, L. Coney, D. Schmitz, G. Barr, A. De Santo, C. Pattison, K. Zuber, F. Bobisut, D. Gibin, A. Guglielmi, M. Mezzetto, J. Dumarchez1, F. Vannucci1, 2, U. Dore, D. Orestano, F. Pastore, A. Tonazzo2, L. Tortora, C. Booth, L. Howlett, M. Bogomilov, M. Chizhov, D. Kolev, R. Tsenov, S. Piperov, P. Temnikov, M. Apollonio, P. Chimenti, G. Giannini, G. Santin, J. Burguet-Castell, A. Cervera-Villanueva, J. J. Gómez-Cadenas, J. Martín-Albo, P. Novella, M. Sorel
HARP Collaboration(s)
(05/2008)

The results of the measurements of the double-differential production cross-sections of pions, dσ/dpdΩ, in p C and π C interactions using the forward spectrometer of the HARP experiment are presented. The incident particles are 12 GeV/c protons and charged pions directed onto a carbon target with a thickness of 5% of a nuclear interaction length. For p C interactions the analysis is performed using 100,035 reconstructed secondary tracks, while the corresponding numbers of tracks for π C and π C analyses are 106,534 and 10,122, respectively. Cross-section results are presented in the kinematic range 0.5GeV/c⩽pπ<8GeV/c and 30mrad⩽θπ<240mrad in the laboratory frame. The measured cross-sections have a direct impact on the precise calculation of atmospheric neutrino fluxes and on the improved reliability of extensive air shower simulations by reducing the uncertainties of hadronic interaction models in the low energy range.
1 :  LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies
2 :  APC - UMR 7164 - AstroParticule et Cosmologie
APC - Neutrinos
Physique/Physique des Hautes Energies - Expérience

Planète et Univers/Astrophysique/Instrumentation et méthodes pour l'astrophysique

Physique/Astrophysique/Instrumentation et méthodes pour l'astrophysique