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

Autori
Abgrall, N. ; ... ; Antičić, Tome ; ... ; Kadija, Krešo ; ... ; Šuša, Tatjana ; ... ; Zipper, W. (NA61 Collaboration)

Izvornik
Physical review. C. Nuclear physics (0556-2813) 84 (2011); 034604, 26

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
CERN ; NA61 ; p+C ; 31GeV ; pion ; cross section

Sažetak
Interaction cross sections and charged pion spectra in p + C interactions at 31 GeV/c were measured with the large-acceptanceNA61/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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA