Neutrino-nucleus cross sections in¹²C and⁴⁰Ar with KDAR neutrinos

Abstract

High intensity monoenergetic muon neutrinos of energy 236 MeV from kaon decay at rest (KDAR) at the medium energy proton accelerator facilities like J-PARC and Fermilab are proposed to be used for making precision measurements of neutrino-nucleus cross sections in 12 C and 40 Ar and perform neutrino oscillation experiments in νµ → νµ and νµ → νe modes. In view of these developments, we study the theoretical uncertainties arising due to the nuclear medium effects in the neutrino-nucleus cross sections as well as in the angular and energy distributions of the charged leptons produced in the charged current (CC) induced reactions by νµ and νe in 12 C and 40 Ar in the energy region of E νe(νµ) < 300 MeV. The calculations have been done in a microscopic model using the local density approximation which takes into account the nuclear effects due to the Fermi motion, binding energy and long range correlations. The results are compared with the other calculations available in the literature.PACS numbers: 12.15.-y,13.15+g,24.10Cn,25.30Pt * sajathar@gmail.com 2

Investigation of the MicroBooNE neutrino cross sections on Argon

“…The aim of the present paper is to confront the predictions of our approach on neutrino interactions with nuclei with the MicroBooNE experimental data on argon. Other theoretical evaluations of neutrino cross sections on argon have been performed [16][17][18][19][20][21][22][23][24][25].…”

Modeling quasielastic interactions of monoenergetic kaon decay-at-rest neutrinos

“…These include the results of the NuWro [28], Nuance [29], and GENIE [30] event generators. Results are also given for the models of Martini et al [31] and Singh et al [32]. In addition to these, we show the results obtained within the CRPA model described here and the relativistic mean field (RMF) model of Ref.…”

“…The Martini and Singh models are similar in shape, with the main difference between them that the Martini model provides more strength in the low-T µ tail, while the Singh model places this strength in the high-T µ region. Note, however, that the latter predicts a significantly smaller total cross section than the other models because of a strong quenching due to RPA corrections [32]. The CRPA and RMF models place even more strength in the high T µ peak compared to the tail due to single particle resonances that arise in the mean field.…”

A New Generation of Neutrino Cross Section Experiments: Challenges and Opportunities

“…The developed theoretical nuclear models should not only cover different reaction channels and kinematics but also be applicable to various nuclear targets. If many calculations exist for the doubly magic N = Z nuclei 12 C and 16 O, the effort to investigate the 40 Ar started only recently [80,82,[112][113][114][115][116][117][118][119][120] and often it requires formal generalization of the existing approaches, being the 40 Ar an open-shell nucleus with N = Z.…”