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arXiv · 2603.03210

Relativistic distorted-wave analysis of the missing-energy spectrum measured with monochromatic $ν_μ$-$^{12}$C interactions at JSNS$^{2}$

J. M. Franco-Patino·J. García-Marcos·V. Belocchi·M. B. Barbaro·G. Co'·R. González-Jiménez
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Abstract

Recently, the JSNS$^2$ collaboration measured for the first time the missing-energy distribution of $^{12}$C using a monochromatic neutrino beam coming from kaon decays at rest. In this work we present the results of an analysis of this spectrum using the relativistic distorted-wave approach. A new parameterization of the spectral function for neutrons in $^{12}$C, which incorporates detailed information from $\left(e,e'p\right)$ experiments with high missing-energy resolution has been used. The role of the recoil of the residual nucleus, final-state interactions, and neutrino event generators are discussed.

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J. M. Franco-Patino, J. García-Marcos, V. Belocchi, M. B. Barbaro, G. Co', R. González-Jiménez. 2026-08-05. Relativistic distorted-wave analysis of the missing-energy spectrum measured with monochromatic $ν_μ$-$^{12}$C interactions at JSNS$^{2}$. https://doi.org/10.1103/pw5w-trjn

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