Modeling quasielastic interactions of monoenergetic kaon decay-at-rest neutrinos
Oct 12, 2020
19 pages
Published in:
- Phys.Rev.C 103 (2021) 6, 064603
- Published: Jun 4, 2021
e-Print:
- 2010.05794 [nucl-th]
Report number:
- FERMILAB-PUB-21-587-V
Citations per year
Abstract: (APS)
Monoenergetic muon neutrinos at 236 MeV are readily produced in intense medium-energy proton facilities (≳2–3GeV) when a positive kaon decays at rest (KDAR; K+→μ+νμ). These neutrinos provide a unique opportunity to both study the neutrino interaction and probe the nucleus with a monoenergetic weak-interaction-only tool. We present cross-section calculations for quasielastic scattering of these 236-MeV neutrinos off C12 and Ar40, paying special attention to low-energy aspects of the scattering process. Our model takes the description of the nucleus in a mean-field approach as the starting point, where we solve Hartree-Fock equations using a Skyrme type nucleon-nucleon interaction. Thereby, we introduce long-range nuclear correlations by means of a continuum random-phase approximation (CRPA) framework where we solve the CRPA equations using a Green's function method. The model successfully describes (e,e′) data on C12 and Ca40 in the kinematic region that overlaps with the KDAR νμ phase space. In addition to these results, we present future prospects for precision KDAR cross-section measurements and applications of our calculations in current and future experiments that will utilize these neutrinos.- Nuclear Reactions
- neutrino: interaction
- nucleon nucleon: interaction
- K: decay: at rest
- neutrino nucleus: interaction
- random phase approximation
- Skyrme model
- mean field approximation
- electron: scattering
- inelastic scattering
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Figures(17)
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