Measurements of cross sections and charged pion spectra in proton-carbon interactions at 31 GeV/c

N. Abgrall, A. Aduszkiewicz, B. Andrieu, T. Anticic, N. Antoniou, J. Argyriades, A. G. Asryan, B. Baatar, A. Blondel, J. Blumer, M. Bogusz, L. Boldizsar, A. Bravar, W. Brooks, J. Brzychczyk, A. Bubak, S. A. Bunyatov, O. Busygina, T. Cetner, K. U. ChoiP. Christakoglou, P. Chung, T. Czopowicz, N. Davis, F. Diakonos, S. Di Luise, W. Dominik, J. Dumarchez, R. Engel, A. Ereditato, L. S. Esposito, G. A. Feofilov, Z. Fodor, A. Ferrero, A. Fulop, X. Garrido, M. Gaździcki, M. Golubeva, K. Grebieszkow, A. Grzeszczuk, F. Guber, H. Hakobyan, T. Hasegawa, S. Igolkin, A. S. Ivanov, Y. Ivanov, A. Ivashkin, K. Kadija, A. Kapoyannis, N. Katryńska, D. Kiełczewska, D. Kikola, J. H. Kim, M. Kirejczyk, J. Kisiel, T. Kobayashi, O. Kochebina, V. I. Kolesnikov, D. Kolev, V. P. Kondratiev, A. Korzenev, S. Kowalski, S. Kuleshov, A. Kurepin, R. Lacey, J. Lagoda, A. Laszlo, V. V. Lyubushkin, M. MacKowiak, Z. Majka, A. I. Malakhov, A. Marchionni, A. Marcinek, I. Maris, V. Marin, T. Matulewicz, V. Matveev, G. L. Melkumov, A. Meregaglia, M. Messina, St Mrówczyński, S. Murphy, T. Nakadaira, P. A. Naumenko, K. Nishikawa, T. Palczewski, G. Palla, A. D. Panagiotou, W. Peryt, O. Petukhov, R. Płaneta, J. Pluta, B. A. Popov, M. Posiadała, S. Puławski, W. Rauch, M. Ravonel, R. Renfordt, A. Robert, D. Röhrich, E. Rondio, B. Rossi, M. Roth, A. Rubbia, M. Rybczyński, A. Sadovsky, K. Sakashita, T. Sekiguchi, P. Seyboth, M. Shibata, A. N. Sissakian, E. Skrzypczak, M. Słodkowski, A. S. Sorin, P. Staszel, G. Stefanek, J. Stepaniak, C. Strabel, H. Ströbele, T. Susa, P. Szaflik, M. Szuba, M. Tada, A. Taranenko, R. Tsenov, R. Ulrich, M. Unger, M. Vassiliou, V. V. Vechernin, G. Vesztergombi, A. Wilczek, Z. Włodarczyk, A. Wojtaszek, J. G. Yi, I. K. Yoo, W. Zipper

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Abstract

Interaction cross sections and charged pion spectra in p+C interactions at 31 GeV/c were measured with the large-acceptance NA61/SHINE spectrometer at the CERN SPS. These data are required to improve predictions of the neutrino flux for the T2K long-baseline neutrino oscillation experiment in Japan. A set of data collected during the first NA61/SHINE run in 2007 with an isotropic graphite target with a thickness of 4% of a nuclear interaction length was used for the analysis. The measured p+C inelastic and production cross sections are 257.2 ± 1.9 ± 8.9 and 229.3 ± 1.9 ± 9.0 mb, respectively. Inclusive production cross sections for negatively and positively charged pions are presented as functions of laboratory momentum in ten intervals of the laboratory polar angle covering the range from 0 up to 420 mrad. The spectra are compared with predictions of several hadron production models.

Original languageEnglish
Article number034604
JournalPhysical Review C - Nuclear Physics
Volume84
Issue number3
DOIs
Publication statusPublished - Sep 6 2011

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Abgrall, N., Aduszkiewicz, A., Andrieu, B., Anticic, T., Antoniou, N., Argyriades, J., Asryan, A. G., Baatar, B., Blondel, A., Blumer, J., Bogusz, M., Boldizsar, L., Bravar, A., Brooks, W., Brzychczyk, J., Bubak, A., Bunyatov, S. A., Busygina, O., Cetner, T., ... Zipper, W. (2011). Measurements of cross sections and charged pion spectra in proton-carbon interactions at 31 GeV/c. Physical Review C - Nuclear Physics, 84(3), [034604]. https://doi.org/10.1103/PhysRevC.84.034604