Document Type

Article

Publication Date

4-2022

DOI

10.1103/PhysRevC.105.L042501

Publication Title

Physical Review C

Volume

105

Issue

4

Pages

1-6

Abstract

Searches for neutrinoless double-β decay rates are crucial in addressing questions within fundamental symmetries and neutrino physics. The rates of these decays depend not only on unknown parameters associated with neutrinos, but also on nuclear properties. In order to reliably extract information about the neutrino, one needs an accurate treatment of the complex many-body dynamics of the nucleus. Neutrinoless double-β decays take place at momentum transfers on the order of 100MeV /c and require both nuclear electroweak vector and axial current matrix elements. Muon capture, a process in the same momentum transfer regime, has readily available experimental data to validate these currents. In this Letter, we present results of ab initio calculations of partial muon capture rates for 3He and 6Li nuclei using variational and Green's function Monte Carlo computational methods. We estimate the impact of the three-nucleon interactions, the cutoffs used to regularize two-nucleon (2N) interactions, and the energy range of 2N scattering data used to fit these interactions.

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©2022 American Physical Society

Original Publication Citation

King, G. B., Pastore, S., Piarulli, M., & Schiavilla, R. (2022). Partial muon capture rates in A= 3 and A= 6 nuclei with chiral effective field theory. Physical Review C, 105(4), Article L042501. https://doi.org/10.1103/PhysRevC.105.L042501

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