20-27 July 2011
Alpes Congrès - Alpexpo
Europe/Paris timezone

Measurement of charged kaons and pions production in proton-carbon interaction at 31 GeV/c from NA61/SHINE

22 Jul 2011, 15:50
Oisans (Alpes Congrès - Alpexpo)


Alpes Congrès - Alpexpo

Parallel session talk Neutrino Physics Neutrino Physics


Dr Alexander Korzenev (Universite de Geneve, Section de physique, DPNC)


An overview of the recent NA61/SHINE results on determination of charged kaon and pion yields in proton-carbon reactions is presented. The results aim to improve predictions of the neutrino flux in the T2K experiment. The data were recorded during the first physics run of NA61 in 2007 where a proton beam of 31 GeV/c momentum scattered off a graphite target. Thin target, 4% of a nuclear interaction length, was used to determine interaction cross section. Inclusive production cross sections for negatively and positively charged pions and kaons are presented as a function of laboratory momentum and polar angle. The spectra are compared to predictions of hadron production models. In addition preliminary results obtained with a long graphite target (the so called T2K replica target) are presented. The precision required by T2K is discussed.

Primary author

Dr Alexander Korzenev (Universite de Geneve, Section de physique, DPNC)

Presentation Materials