期刊
PHYSICAL REVIEW C
卷 84, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.84.034604
关键词
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资金
- Hungarian Scientific Research Fund (OTKA) [68506, 79840]
- Polish Ministry of Science and Higher Education [667/N-CERN/2010/0, N N202 1267 36, NN202 287838, PBP 2878/B/H03/2010/38, DWM/57/T2K/2007]
- Federal Agency of Education of the Ministry of Education and Science of the Russian Federation [RNP 2.2.2.2.1547]
- Russian Academy of Sciences
- Russian Foundation for Basic Research [08-02-00018, 09-02-00664]
- Ministry of Education, Culture, Sports, Science and Technology, Japan [18071005, 19034011, 19740162, 20740160, 20039012]
- Toshiko Yuasa Laboratory (France-Japan Particle Physics Laboratory)
- Institut National de Physique Nucleaire et Physique des Particules (France) [IN2P3]
- German Research Foundation [GA 1480/2-1]
- Swiss National Science Foundation
- Swiss State Secretariat for Education and Research
- ETH Zurich [TH-01 07-3]
- University of Bern
- University of Geneva
- European Organization for Nuclear Research
- Grants-in-Aid for Scientific Research [20740160, 20039012, 21244042, 19034011, 18071005, 19740162] Funding Source: KAKEN
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.
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