Recent Developments in Neutrino/Antineutrino-Nucleus Interactions

Abstract

Recent experimental results and developments in the theoretical treatment of neutrino-nucleus interactions in the energy range of 1-10 GeV are discussed. Difficulties in extracting neutrino-nucleon cross sections from neutrino-nucleus scattering data are explained and significance of understanding nuclear effects for neutrino oscillation experiments is stressed. Detailed discussions of the status of two-body current contribution in the kinematic region dominated by quasi-elastic scattering and specific features of partonic nuclear effects in weak DIS scattering are presented.

Measurement of theνμcharged-current quasielastic cross section on carbon with the ND280 detector at T2K

“…The MINERvA experiment reports excess vertex activity in CCQE data which may also indicate the presence of multinucleon processes [10]. Recent theoretical developments are reviewed in [11,12]. Such additional processes not only contribute to the measured total cross section but also can affect the neutrino energy reconstruction.…”

Neutrino-nucleus interactions in the few-GeV region

“…Last years have witnessed an intense experimental and theoretical activity in this topic (see for instance Refs. [1][2][3] and references therein). Here, we will only make two remarks.…”

“…In the case of CC interactions at the nucleon level the possible reactions are ν l n → pl − andν l p → nl + , while for NC, neutrinos elastically scatter from nucleons, νN → νN. In these reactions nuclear effects are quite important [1,3] and they need to be accounted for when determining the neutrino oscillation parameters. Indeed, uncertainties on these nuclear corrections are an important limitation in the oscillation analysis and a source of systematics.…”

“…This is because neutrinos are detected through their interactions with the nuclei that form part of the detectors. Therefore, a better understanding of weak interaction mechanisms in dense matter is actively pursued [1][2][3]. However, the relevance of neutrino interactions with matter extends over a large variety of topics in astrophysics, physics beyond the Standard Model, hadronic physics and nuclear physics.…”

Leptonic CP violating effective action for Dirac and Majorana neutrinos

“…More importantly, these are not separated fields, rather they are closely interconnected in such a way that advances in one fields sheds light on all other fields as well [1][2][3][4][5][6][7][8][9][10][11][12][13][14].…”