Abstract
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 neutrinonucleon reactions follows and, in particular, a dynamical coupled-channels model for meson productions in and beyond the δ(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 δ-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.
| Original language | English |
|---|---|
| Article number | 056301 |
| Journal | Reports on Progress in Physics |
| Volume | 80 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Apr 10 2017 |
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Keywords
- many-body theory
- neutrino oscillation
- neutrino-nucleus interaction
ASJC Scopus subject areas
- Medicine(all)
- Physics and Astronomy(all)
Cite this
Towards a unified model of neutrino-nucleus reactions for neutrino oscillation experiments. / Nakamura, S. X.; Kamano, H.; Hayato, Y.; Hirai, M.; Horiuchi, W.; Kumano, S.; Murata, T.; Saito, K.; Sakuda, Makoto; Sato, T.; Suzuki, Y.
In: Reports on Progress in Physics, Vol. 80, No. 5, 056301, 10.04.2017.Research output: Contribution to journal › Review article
}
TY - JOUR
T1 - Towards a unified model of neutrino-nucleus reactions for neutrino oscillation experiments
AU - Nakamura, S. X.
AU - Kamano, H.
AU - Hayato, Y.
AU - Hirai, M.
AU - Horiuchi, W.
AU - Kumano, S.
AU - Murata, T.
AU - Saito, K.
AU - Sakuda, Makoto
AU - Sato, T.
AU - Suzuki, Y.
PY - 2017/4/10
Y1 - 2017/4/10
N2 - 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 neutrinonucleon reactions follows and, in particular, a dynamical coupled-channels model for meson productions in and beyond the δ(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 δ-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.
AB - 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 neutrinonucleon reactions follows and, in particular, a dynamical coupled-channels model for meson productions in and beyond the δ(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 δ-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.
KW - many-body theory
KW - neutrino oscillation
KW - neutrino-nucleus interaction
UR - http://www.scopus.com/inward/record.url?scp=85018939827&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85018939827&partnerID=8YFLogxK
U2 - 10.1088/1361-6633/aa5e6c
DO - 10.1088/1361-6633/aa5e6c
M3 - Review article
AN - SCOPUS:85018939827
VL - 80
JO - Reports on Progress in Physics
JF - Reports on Progress in Physics
SN - 0034-4885
IS - 5
M1 - 056301
ER -