Quasielastic neutrino-nucleus scattering in a continuum random phase approximation approach

28 Aug 2014, 11:00
25m
Western Infirmary Lecture Theatre (University of Glasgow)

Western Infirmary Lecture Theatre

University of Glasgow

University Avenue Glasgow, G12 8QQ, Scotland, UK

Speaker

Mr Vishvas Pandey (Ghent University)

Description

We present a detailed description of a continuum random phase approximation approach to inclusive quasielastic electron and neutrino-nucleus scattering. The description of the nucleus starts from a mean field (MF) potential, where long-range correlations are added by means of a continuum random phase approximation (CRPA) based on a Green's function approach using an effective Skyrme interaction as residual interaction. The formalism is validated by confronting our cross-section predictions with inclusive electron-scattering data for a variety of nuclear targets ($^{12}$C, $^{16}$O, $^{40}$Ca), in the kinematic region where quasi-elastic scattering is expected to be the dominant process. We report on cross sections calculations for charged-current quasielastic (anti)neutrino scattering off $^{12}$C in the energy range of interest for the MiniBooNE experiment and compare our results with the MiniBooNE (anti)neutrino cross-section measurements. The CRPA predictions reproduce the gross features of the measured double-differential cross sections. We pay special attention to the low-energy excitations which can account for non-negligible contributions in the MiniBooNE, T2K and other similar experiments, and require a microscopic nuclear investigation beyond the Fermi gas model.
WG1: Neutrino Oscillation Physics (Yes/No) Yes
WG2: Neutrino Scattering Physics (Yes/No) Yes
WG3: Accelerator Physics (Yes/No) No
WG4: Muon Physics (Yes/No) No
Type of presentation Oral presentation

Author

Mr Vishvas Pandey (Ghent University)

Co-authors

Prof. Jan Ryckebusch (Ghent University) Dr Marco Martini (Ghent University) Prof. Natalie Jachowicz (Ghent University) Mr Tom Van Cuyck (Ghent University)

Presentation materials