Measurements of charged current reactions ofνμon12C

Abstract

Charged current scattering of ν µ on 12 C has been studied using a π + decayin-flight ν µ beam at the Los Alamos Neutron Science Center. A sample of 66.9 ± 9.1 events satisfying criteria for the exclusive reaction 12 C(ν µ , µ − ) 12 N g.s. was obtained using a large liquid scintillator neutrino detector. The observed flux-averaged cross section (5.6± 0.8± 1.0)× 10 −41 cm 2 agrees well with reliable theoretical expectations. A measurement was also obtained for the inclusive cross section to all accessible 12 N states 12 C(ν µ , µ − )X. This flux-averaged cross section is (10.6 ± 0.3 ± 1.8) × 10 −40 cm 2 which is lower than present theoretical calculations.

Neutrino-nucleus cross sections in12C and40Ar with KDAR neutrinos

“…In the low energy region, the short range correlations and the meson exchange currents(MEC) are not expected to play an important role [29][30][31], but the effects of Pauli blocking, Fermi motion and the long range RPA correlations are found to be quite important. This has been shown by many theoretical attempts [32][33][34][35][36][37][38][39][40][41][42][43][44] made to explain the ν µ − 12 C cross section measured in the LSND experiment [45][46][47] with the pion decay in flight (DIF) muon neutrinos in the energy region of E νµ < 320 MeV with < E νµ >= 150 MeV. These effects could therefore be very important in the energy region of KDAR neutrinos.…”

Constraining sterile neutrino cosmology with terrestrial oscillation experiments

“…While they will ultimately be competitive in the ∆m 2 41 ∼ O(1 − 10) eV 2 region, they have not yet produced world-leading limits. Constraints on sterile neutrinos mixing with ν e /ν e from radioactive source [57][58][59], solar [60][61][62][63][64][65][66][67][68][69][70][71] and carbonscattering [72,73] experiments can be nontrivial, but we do not consider these.…”

Cross Section Measurements for Supernova Neutrinos

“…An exception is the measurement of CC and NC interactions on 12 C, respectively, by LSND [5] and KARMEN [6].…”