2017年5月
Towards a unified model of neutrino-nucleus reactions for neutrino oscillation experiments
REPORTS ON PROGRESS IN PHYSICS
- 巻
- 80
- 号
- 5
- 開始ページ
- 056301
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1088/1361-6633/aa5e6c
- 出版者・発行元
- IOP PUBLISHING LTD
A precise description of neutrino-nucleus reactions will play a key role in addressing fundamental questions such as the leptonic CP violation and the neutrino mass hierarchy through analyzing data from next-generation neutrino oscillation experiments. The neutrino energy relevant to the neutrino-nucleus reactions spans a broad range and, accordingly, the dominant reaction mechanism varies across the energy region from quasi-elastic scattering through nucleon resonance excitations to deep inelastic scattering. This corresponds to transitions of the effective degree of freedom for theoretical description from nucleons through meson-baryon to quarks. The main purpose of this review is to report our recent efforts towards a unified description of the neutrino-nucleus reactions over the wide energy range; recent overall progress in the field is also sketched. Starting with an overview of the current status of neutrino-nucleus scattering experiments, we formulate the cross section to be commonly used for the reactions over all the energy regions. A description of the neutrino-nucleon reactions follows and, in particular, a dynamical coupled-channels model for meson productions in and beyond the Delta(1232) region is discussed in detail. We then discuss the neutrino-nucleus reactions, putting emphasis on our theoretical approaches. We start the discussion with electroweak processes in few-nucleon systems studied with the correlated Gaussian method. Then we describe quasi-elastic scattering with nuclear spectral functions, and meson productions with a Delta-hole model. Nuclear modifications of the parton distribution functions determined through a global analysis are also discussed. Finally, we discuss issues to be addressed for future developments.
- リンク情報
- ID情報
-
- DOI : 10.1088/1361-6633/aa5e6c
- ISSN : 0034-4885
- eISSN : 1361-6633
- Web of Science ID : WOS:000399252500001