L. Xayavong

activity

20162025

most citedRadial Overlap Correction to Superallowed

0^{+} \to 0^{+}

β

-decay revisited

30 citations · 44 across the 12 of their papers we have counts for

collaborators

12 papers

nucl-th2025

New shell-model calculations of the $δ_{C}$ correction to superallowed $0^{+} \to 0^{+}$ nuclear $β$ decay and standard-model implications

L. Xayavong, N. A. Smirnova, F. Nowacki

Refined calculations of the radial mismatch correction, $δ_{C 2}$ , to superallowed $0^{+} \to 0^{+}$ nuclear $β$ decay are performed using the shell model with realistic Woods-Sax…

nucl-th2025

Radial excitations and their potential impact on Fermi $β$ -decay rates

L. Xayavong, Y. Lim, N. A. Smirnova +1

We investigate the contribution of radial excitations to Fermi $β$ -decay matrix element. To this end, exact no-core shell model calculations are performed for the mirror $β$ decay…

nucl-th2024

Refining the isovector component of the Woods-Saxon potential

L. Xayavong, Y. Lim, N. A. Smirnova +1

We investigate the isovector component in the phenomenological mean field model of nuclei. Lane's isospin dependence, initially proposed for the nuclear optical potential, is reexa…

nucl-th2024

Understanding the mirror asymmetry in Gamow-Teller transition rates between $^{28}$ Al( $β^{-}$ ) $^{28 m}$ Si and $^{28}$ P( $β^{+}$ ) $^{28 m}$ Si

L. Xayavong, N. A. Smirnova, Y. Lim

The long-standing discrepancy between shell-model and experimental values of the mirror asymmetry in Gamow-Teller transition rates for $^{28}$ Al( $β^{-}$ ) $^{28 m}$ Si and $^{28}$ P( $β^{+}$ …

nucl-th2024

Constraining theoretical Corrections to Gamow-Teller Transition Rates

L. Xayavong, Y. Lim

We propose two novel constraints for the theoretical corrections to Gamow-Teller transition rates. The first, derived from a two-level model, predicts forbidden regions within the…

nucl-th2023

Shell-Model Description of the Isospin-Symmetry-Breaking Correction to Gamow-Teller $β$ -Decay Rates and Their Mirror Asymmetries

Latsamy Xayavong, Yeunhwan Lim

The isospin-symmetry breaking correction, denoted as $δ_{C}$ , is introduced for the first time within the shell-model framework to the nuclear matrix element of Gamow-Teller transiti…

nucl-th2023

Improved determination of the oscillator parameters in nuclei

Latsamy Xayavong, Yeunhwan Lim

The oscillator parameter in nuclei is refitted to reproduce the available charge radius data. As an important improvement, we include the Coulomb term evaluated within the assumpti…

nucl-th2023

Realistic evaluation of Coulomb potential in spherical nuclei and test of the traditional approach

L. Xayavong, Y. Lim

A realistic evaluation of Coulomb potential has been made for some selected nuclei using the available model-independent data for the charge density and the recent development of C…

nucl-th2022

Higher-order isospin-symmetry breaking corrections to nuclear matrix elements of superallowed $0^{+} \to 0^{+}$ Fermi $β$ decay of $T = 1$ nuclei

Latsamy Xayavong, Nadezda Smirnova

We study the shell-model formalism to include the isospin-symmetry-breaking correction ( $δ_{C}$ ) to nuclear matrix element of superallowed $0^{+} \to 0^{+}$ Fermi $β$ decays of $T = 1$ nu…

nucl-th2021★ 14 cited

Radial overlap correction to superallowed $0^{+} \to 0^{+}$ nuclear $β$ decays using the shell model with Hartree-Fock radial wave functions

Latsamy Xayavong, Nadezda Smirnova

The radial overlap correction, $δ_{R O}$ is re-examined for 30 superallowed $β$ decays using the shell model with Hartree-Fock (HF) radial wave functions. Our calculation is based o…

nucl-th2017★ 30 cited

Radial Overlap Correction to Superallowed $0^{+} \to 0^{+}$ $β$ -decay revisited

Latsamy Xayavong, Nadezda Smirnova

Within the nuclear shell model, we investigate the correction $δ_{R O}$ to the Fermi matrix element due to a mismatch between proton and neutron single-particle radial wave function…

nucl-th2016

Shell-model calculation of isospin-symmetry breaking correction to superallowed Fermi beta-decay

L. Xayavong, N. A. Smirnova, M. Bender +1

We investigate the radial-overlap part of the isospin-symmetry breaking correction to superallowed $0^{+} \to 0^{+}$ -decay using the shell-model approach similar to that of Refs. [1, 2]…

New shell-model calculations of the δC​ correction to superallowed 0+→0+ nuclear β decay and standard-model implications

Radial excitations and their potential impact on Fermi β-decay rates

Refining the isovector component of the Woods-Saxon potential

Understanding the mirror asymmetry in Gamow-Teller transition rates between 28Al(β−)28mSi and 28P(β+)28mSi

Constraining theoretical Corrections to Gamow-Teller Transition Rates

Shell-Model Description of the Isospin-Symmetry-Breaking Correction to Gamow-Teller β-Decay Rates and Their Mirror Asymmetries

Improved determination of the oscillator parameters in nuclei

Realistic evaluation of Coulomb potential in spherical nuclei and test of the traditional approach

Higher-order isospin-symmetry breaking corrections to nuclear matrix elements of superallowed 0+→0+ Fermi β decay of T=1 nuclei

Radial overlap correction to superallowed 0+→0+ nuclear β decays using the shell model with Hartree-Fock radial wave functions

Radial Overlap Correction to Superallowed 0+→0+ β-decay revisited

Shell-model calculation of isospin-symmetry breaking correction to superallowed Fermi beta-decay

New shell-model calculations of the $δ_{C}$ correction to superallowed $0^{+} \to 0^{+}$ nuclear $β$ decay and standard-model implications

Radial excitations and their potential impact on Fermi $β$ -decay rates

Understanding the mirror asymmetry in Gamow-Teller transition rates between $^{28}$ Al( $β^{-}$ ) $^{28 m}$ Si and $^{28}$ P( $β^{+}$ ) $^{28 m}$ Si

Shell-Model Description of the Isospin-Symmetry-Breaking Correction to Gamow-Teller $β$ -Decay Rates and Their Mirror Asymmetries

Higher-order isospin-symmetry breaking corrections to nuclear matrix elements of superallowed $0^{+} \to 0^{+}$ Fermi $β$ decay of $T = 1$ nuclei

Radial overlap correction to superallowed $0^{+} \to 0^{+}$ nuclear $β$ decays using the shell model with Hartree-Fock radial wave functions

Radial Overlap Correction to Superallowed $0^{+} \to 0^{+}$ $β$ -decay revisited