Nucleon-nucleon short-ranged correlations, <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>β</mi></math> decay, and the unitarity of the CKM matrix

Levi Condren; Gerald A. Miller

doi:10.1103/PhysRevC.106.L062501

Letter

Nucleon-nucleon short-ranged correlations, $β$ decay, and the unitarity of the CKM matrix

Levi Condren and Gerald A. Miller

University of Washington, Seattle, Seattle, Washington 98195-1560, USA

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Phys. Rev. C 106, L062501 – Published 12 December, 2022

DOI: https://doi.org/10.1103/PhysRevC.106.L062501

Abstract

The influence of nucleon-nucleon short-ranged correlations (SRC) on nuclear superallowed $β$ decay is examined. The need for this is driven by the observed depletion of spectroscopic strength obtained in studies of $(e, e^{'})$ and $(d, {}^{3}{He})$ reactions on a wide variety of nuclei. We show that the influence of SRC is model dependent, but may be very substantial. The ${}^{46}V$ nucleus is used as an example. The resulting impact on studies of the unitarity of the Cabibbo-Kobayashi-Maskawa (CKM) matrix element is discussed.

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Nucleon-nucleon short-ranged correlations, $β$ decay, and the unitarity of the CKM matrix

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Nucleon-nucleon short-ranged correlations, β decay, and the unitarity of the CKM matrix

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Nucleon-nucleon short-ranged correlations, $β$ decay, and the unitarity of the CKM matrix