Beta-Decay Processes in Nuclear Systems

A special issue of Particles (ISSN 2571-712X).

Deadline for manuscript submissions: closed (28 February 2022) | Viewed by 8080

Special Issue Editors


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Guest Editor
Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
Interests: nuclear structure; neutron stars; strongly interacting many-body systems

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Guest Editor
Los Alamos National Laboratory, USA
Interests: fundamental symmetries; effective field theories; neutrino physics and astrophysics

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Guest Editor
Los Alamos National Laboratory, USA
Interests: low-energy probes of fundamental symmetries; Standard Model effective field theory; nuclear effective theories

Special Issue Information

Dear Colleagues,

In this Special Issue, we would like to summarize the current status of calculations and experiments that are relevant for nuclear beta decays. In particular, we plan to review several aspects of weak decays, from the neutron to the decays of light and medium mass nuclei, and the different theoretical methods, from lattice QCD to few-body methods based in effective field theories and nuclear many-body techniques, that make it possible to achieve rigorous predictions.

A crucial aspect will be to have a full understanding of the precision that present and near-future experiments will achieve, and of the systematic uncertainties in the theoretical calculations at different scales, whose control is necessary to establish nuclear beta decays as sensitive probes of physics beyond the Standard Model.

Dr. Stefano Gandolfi
Dr. Vincenzo Cirigliano
Dr. Emanuele Mereghetti
Guest Editors

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Keywords

  • nuclear beta-decays
  • weak transitions
  • neutron life-time
  • electroweak currents
  • effective field theory

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Published Papers (2 papers)

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Research

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15 pages, 456 KiB  
Article
Beta Decay in Medium-Mass Nuclei with the In-Medium Similarity Renormalization Group
by Steven Ragnar Stroberg
Particles 2021, 4(4), 521-535; https://doi.org/10.3390/particles4040038 - 18 Nov 2021
Cited by 7 | Viewed by 3306
Abstract
We review the status of ab initio calculations of allowed beta decays (both Fermi and Gamow–Teller), within the framework of the valence-space in-medium similarity renormalization group approach. Full article
(This article belongs to the Special Issue Beta-Decay Processes in Nuclear Systems)
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Review

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71 pages, 2928 KiB  
Review
Radiative Corrections to Semileptonic Beta Decays: Progress and Challenges
by Chien-Yeah Seng
Particles 2021, 4(4), 397-467; https://doi.org/10.3390/particles4040034 - 28 Sep 2021
Cited by 18 | Viewed by 3685
Abstract
We review some recent progress in the theory of electroweak radiative corrections in semileptonic decay processes. The resurrection of the so-called Sirlin’s representation based on current algebra relations permits a clear separation between the perturbatively-calculable and incalculable pieces in the [...] Read more.
We review some recent progress in the theory of electroweak radiative corrections in semileptonic decay processes. The resurrection of the so-called Sirlin’s representation based on current algebra relations permits a clear separation between the perturbatively-calculable and incalculable pieces in the O(GFα) radiative corrections. The latter are expressed as compact hadronic matrix elements that allow systematic non-perturbative analysis such as dispersion relation and lattice QCD. This brings substantial improvements to the precision of the electroweak radiative corrections in semileptonic decays of pion, kaon, free neutron and JP=0+ nuclei that are important theory inputs in precision tests of the Standard Model. Unresolved issues and future prospects are discussed. Full article
(This article belongs to the Special Issue Beta-Decay Processes in Nuclear Systems)
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