/ Experiment-HEP arXiv:1102.0983


Measurements of Cross Sections and Charged Pion Spectra in Proton-Carbon Interactions at 31 GeV/c


Abgrall, N (Geneva U.) ; Aduszkiewicz, A (Warsaw U.) ; Andrieu, B (Paris U., VI-VII) ; Anticic, T (Boskovic Inst., Zagreb) ; Antoniou, N (Athens U.) ; Argyriades, J (Geneva U.) ; Asryan, A G (St. Petersburg State U.) ; Baatar, B (Dubna, JINR) ; Blondel, A (Geneva U.) ; Blumer, J (Karlsruhe, Inst. Technol.) ; Bogusz, M (Warsaw U. of Tech.) ; Boldizsar, L (Budapest, RMKI) ; Bravar, A (Geneva U.) ; Brooks, W (Santa Maria U., Valparaiso) ; Brzychczyk, J (Jagiellonian U.) ; Bubak, A (Silesia U.) ; Bunyatov, S A (Dubna, JINR) ; Busygina, O (Moscow, INR) ; Cetner, T (Warsaw U. of Tech.) ; Choi, K -U (Pusan Natl. U.) ; Christakoglou, P (Athens U.) ; Chung, P (SUNY, Stony Brook) ; Czopowicz, T (Warsaw U. of Tech.) ; Davis, N (Athens U.) ; Diakonos, F (Athens U.) ; Di Luise, S (Zurich, ETH) ; Dominik, W (Warsaw U.) ; Dumarchez, J (Paris U., VI-VII) ; Engel, R (Karlsruhe, Inst. Technol.) ; Ereditato, A (Bern U.) ; Esposito, L S (Zurich, ETH) ; Feofilov, G A (St. Petersburg State U.) ; Fodor, Z (Budapest, RMKI) ; Ferrero, A (Geneva U.) ; Fulop, A (Budapest, RMKI) ; Garrido, X (Karlsruhe, Inst. Technol.) ; Gazdzicki, M (Jan Kochanowski U.) ; Golubeva, M (Moscow, INR) ; Grebieszkow, K (Warsaw U. of Tech.) ; Grzeszczuk, A (Silesia U.) ; Guber, F (Moscow, INR) ; Hakobyan, H (Santa Maria U., Valparaiso) ; Hasegawa, T (KEK, Tsukuba) ; Igolkin, S (St. Petersburg State U.) ; Ivanov, A S (St. Petersburg State U.) ; Ivanov, Y (Santa Maria U., Valparaiso) ; Ivashkin, A (Moscow, INR) ; Kadija, K (Boskovic Inst., Zagreb) ; Kapoyannis, A (Athens U.) ; Katrynska, N N (Jagiellonian U.) ; Kielczewska, D (Warsaw U.) ; Kikola, D (Warsaw U. of Tech.) ; Kim, J -H (Pusan Natl. U.) ; Kirejczyk, M (Warsaw U.) ; Kisiel, J (Silesia U.) ; Kobayashi, T (KEK, Tsukuba) ; Kochebina, O (St. Petersburg State U.) ; Kolesnikov, V I (Dubna, JINR) ; Kolev, D (Sofiya U.) ; Kondratiev, V P (St. Petersburg State U.) ; Korzenev, A (Geneva U.) ; Kowalski, S (Silesia U.) ; Kuleshov, S (Santa Maria U., Valparaiso) ; Kurepin, A (Moscow, INR) ; Lacey, R (SUNY, Stony Brook) ; Lagoda, J (Warsaw, Inst. Nucl. Studies) ; Laszlo, A (Budapest, RMKI) ; Lyubushkin, V V (Dubna, JINR) ; Mackowiak, M (Warsaw U. of Tech.) ; Majka, Z (Jagiellonian U.) ; Malakhov, A I (Dubna, JINR) ; Marchionni, A (Zurich, ETH) ; Marcinek, A (Jagiellonian U.) ; Maris, I (Karlsruhe, Inst. Technol.) ; Marin, V (Moscow, INR) ; Matulewicz, T (Warsaw U.) ; Matveev, V (Moscow, INR) ; Melkumov, G L (Dubna, JINR) ; Meregaglia, A (Zurich, ETH) ; Messina, M (Bern U.) ; Mrowczynski, St (Jan Kochanowski U.) ; Murphy, S (Geneva U.) ; Nakadaira, T (KEK, Tsukuba) ; Naumenko, P A (St. Petersburg State U.) ; Nishikawa, K (KEK, Tsukuba) ; Palczewski, T (Warsaw, Inst. Nucl. Studies) ; Palla, G (Budapest, RMKI) ; Panagiotou, A D (Athens U.) ; Peryt, W (Warsaw U. of Tech.) ; Petukhov, O (Moscow, INR) ; laneta, R P (Jagiellonian U.) ; Pluta, J (Warsaw U. of Tech.) ; Popov, B A (Dubna, JINR) ; Posiadala, M (Warsaw U.) ; Pu lawski, S (Silesia U.) ; Rauch, W (Fachhochschule Frankfurt) ; Ravonel, M (Geneva U.) ; Renfordt, R (Frankfurt U.) ; Robert, A (Paris U., VI-VII) ; Rohrich, D (Bergen U.) ; Rondio, E (Warsaw, Inst. Nucl. Studies) ; Rossi, B (Bern U.) ; Roth, M (Karlsruhe, Inst. Technol.) ; Rubbia, A (Zurich, ETH) ; Rybczynski, M (Jan Kochanowski U.) ; Sadovsky, A (Moscow, INR) ; Sakashita, K (KEK, Tsukuba) ; Sekiguchi, T (KEK, Tsukuba) ; Seyboth, P (Jan Kochanowski U.) ; Shibata, M (KEK, Tsukuba) ; Sissakian, A N (Dubna, JINR) ; Skrzypczak, E (Warsaw U.) ; lodkowski, M S (Warsaw U. of Tech.) ; Sorin, A S (Dubna, JINR) ; Staszel, P (Jagiellonian U.) ; Stefanek, G (Jan Kochanowski U.) ; Stepaniak, J (Warsaw, Inst. Nucl. Studies) ; Strabel, C (Zurich, ETH) ; Strobele, H (Frankfurt U.) ; Susa, T (Boskovic Inst., Zagreb) ; Szaik, P (Silesia U.) ; Szuba, M (Karlsruhe, Inst. Technol.) ; Tada, M (KEK, Tsukuba) ; Taranenko, A (SUNY, Stony Brook) ; Tsenov, R (Sofiya U.) ; Ulrich, R (Karlsruhe, Inst. Technol.) ; Unger, M (Karlsruhe, Inst. Technol.) ; Vassiliou, M (Athens U.) ; Vechernin, V V (St. Petersburg State U.) ; Vesztergombi, G (Budapest, RMKI) ; Wilczek, A (Silesia U.) ; lodarczyk, Z W (Jan Kochanowski U.) ; Wojtaszek, A (Jan Kochanowski U.) ; Yi, J -G (Pusan Natl. U.) ; Yoo, I -K (Pusan Natl. U.) ; Zipper, W (Silesia U.)

Published in: Phys.Rev.C
Pages: 27

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 mb and 229.3 +- 1.9 +- 9.0 mb, respectively. Inclusive production cross sections for negatively and positively charged pions are presented as a function of laboratory momentum in 10 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.


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