Measurements of the reactions12C(νμ,μ−)12Ng.s.and12C(νμ,μ−)X

Autor: K. Johnston, L. B. Auerbach, I. Cohen, V. D. Sandberg, D. Works, W. C. Louis, A. R. Fazely, G. B. Mills, Y. X. Wang, Rex Tayloe, W. Strossman, W. Metcalf, F. J. Federspiel, N. Wadia, R. M. Gunasingha, W. Vernon, A. M. Eisner, J. B. Donahue, G. J. VanDalen, D. H. White, B. D. Dieterle, G. T. Garvey, Hyun-Chul Kim, R. Majkic, R. L. Burman, Yan Xiao, C. Athanassopoulos, D. O. Caldwell, E. Church, R. L. Imlay, S. J. Yellin, R. A. Reeder, K. McIlhany, I. Stancu, David J. Smith, M. Gray, Jacob Waltz
Rok vydání: 1997
Předmět:
Zdroj: Physical Review C. 56:2806-2819
ISSN: 1089-490X
0556-2813
Popis: Charged current scattering of ${\ensuremath{\nu}}_{\ensuremath{\mu}}$ on ${}^{12}\mathrm{C}$ has been studied using a ${\ensuremath{\pi}}^{+}$ decay-in-flight ${\ensuremath{\nu}}_{\ensuremath{\mu}}$ beam at the Los Alamos Meson Physics Facility. A sample of 56.8 $\ifmmode\pm\else\textpm\fi{}9.6$ events satisfying criteria for the exclusive reaction ${}^{12}{\mathrm{C}(\mathrm{\ensuremath{\nu}}}_{\mathrm{\ensuremath{\mu}}}{,\mathrm{\ensuremath{\mu}}}^{\mathrm{\ensuremath{-}}}{)}^{12}{\mathrm{N}}_{\mathrm{g}.\mathrm{s}.}$ was obtained using a large liquid scintillator neutrino detector. The observed flux-averaged cross section $(6.6\ifmmode\pm\else\textpm\fi{}1.0\ifmmode\pm\else\textpm\fi{}1.0)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}41}{\mathrm{cm}}^{2}$ agrees well with reliable theoretical expectations. A measurement was also obtained for the inclusive cross section to all accessible ${}^{12}\mathrm{N}$ states ${}^{12}\mathrm{C}({\ensuremath{\nu}}_{\ensuremath{\mu}},{\ensuremath{\mu}}^{\ensuremath{-}})X.$ This flux-averaged cross section is $(11.2\ifmmode\pm\else\textpm\fi{}0.3\ifmmode\pm\else\textpm\fi{}1.8)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}40}{\mathrm{cm}}^{2},$ which is approximately half of that given by a recent continuum random-phase approximation calculation.
Databáze: OpenAIRE
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