Measurements of the reactions 12C + nu_mue -> mu- + 12N g.s. and 12C + nu_mu -> mue- + 12N
/ Authors
C. Athanassopoulos, L. Auerbach, R. L. Burman, I. Cohen, D. Caldwell, B. Dieterle, J. Donahue, A. Eisner, A. Fazely, F. Federspiel
and 27 more authors
G. Garvey, M. Gray, R. Gunasingha, R. Imlay, K. Johnston, H. Kim, W. Louis, R. Majkic, J. Margulies, K. McIlhany, W. Metcalf, G. Mills, R. Reeder, V. Sandberg, D. Smith, I. Stancu, W. Strossman, R. Tayloe, G. Vandalen, W. Vernon, N. Wadia, J. Waltz, Y. Wang, D. H. White, D. Works, Y. Xiao, S. Yellin
/ Abstract
Charged current scattering of nu_mu on 12C has been studied using a pi+ decay-in-flight nu_mu beam at the Los Alamos Meson Physics Facility. A sample of 56.8 +- 9.6 events satisfying criteria for the exclusive reaction 12C + nu_mu -> mu- + 12N_g.s. was obtained using the large Liquid Scintillator Neutrino Detector (LSND). The observed flux-averaged cross section, (6.6 +- 1.0 +- 1.0) x 10^-41 cm^2, agrees well with reliable theoretical expectations. A measurement was also obtained for the inclusive cross section to all accessible 12N states, 12C + nu_\mu -> mu- + X. This flux-averaged cross section is (11.2 +- 0.3 +- 1.8)x 10^-40 cm^2, which is approximately half of that given by a recent Continuum Random Phase Approximation (CRPA) calculation.
Journal: Physical Review C