Updated evaluation of potential ultralow -value -decay candidates

DK Keblbeck, R Bhandari, ND Gamage… - Physical Review C, 2023 - APS
“Ultralow” Q-value β decays are referred to as such due to their low decay energies of less
than≈ 1 keV. Such a low energy decay is possible when the parent nucleus decays to an …

Fundamental symmetries, neutrons, and neutrinos (FSNN): Whitepaper for the 2023 NSAC long range plan

B Acharya, C Adams, AA Aleksandrova… - arxiv preprint arxiv …, 2023 - arxiv.org
This whitepaper presents the research priorities decided on by attendees of the 2022 Town
Meeting for Fundamental Symmetries, Neutrons and Neutrinos, which took place December …

Precise Q value determinations for forbidden and low energy -decays using Penning trap mass spectrometry

M Redshaw - The European Physical Journal A, 2023 - Springer
Nuclear β-decay provides a laboratory for investigating weak decays occurring inside the
nuclear medium. This provides information on the resulting subtle nuclear and atomic …

Spectral shapes of second-forbidden single-transition nonunique β decays assessed using the nuclear shell model

M Ramalho, J Suhonen, A Neacsu, S Stoica - Frontiers in Physics, 2024 - frontiersin.org
Experimental and theoretical studies of β electrons (electrons emitted in β−-decay
transitions) and their β-electron spectra have recently experienced a rapid expansion. These …

decay -value measurement of and its implications for neutrino studies

Z Ge, T Eronen, A de Roubin, M Ramalho… - Physical Review C, 2023 - APS
The β− decay Q value of Cs 136 (J π= 5+, t 1/2≈ 13 d) was measured with the JYFLTRAP
Penning trap setup at the Ion Guide Isotope Separator On-Line facility of the University of …

Neutrino mass matrix in neutrino-related processes

MI Krivoruchenko, F Šimkovic - Physics of Atomic Nuclei, 2023 - Springer
Techniques are developed for constructing amplitudes of neutrino-related processes in
terms of the neutrino mass matrix, with no reference to the neutrino mixing matrix. The …

Precise -value measurements of and with the Canadian Penning trap for evaluation of potential ultralow -value decays

ND Gamage, R Sandler, F Buchinger, JA Clark, D Ray… - Physical Review C, 2022 - APS
Background: An ultralow Q-value β decay can occur from a parent nuclide to an excited
nuclear state in the daughter such that Q UL≲ 1 keV. These decay processes are of interest …

Novel way of evaluating quenching in /EC decays : Introducing the Branching-Ratio Method (BRM)

A Agnihotri, J Suhonen - arxiv preprint arxiv:2501.07370, 2025 - arxiv.org
The novel Branching-Ratio Method (BRM) for the determination of effective value $ g_ {\rm
A}^{\rm eff} $ of the weak axial coupling $ g_ {\rm A} $ for forbidden non-unique (FNU) …

High-precision direct decay energy measurements of the electron-capture decay of Tc

Z Ge, T Eronen, VA Sevestrean, M Ramalho… - arxiv preprint arxiv …, 2025 - arxiv.org
A direct measurement of the ground-state-to-ground-state electron-capture decay $ Q $($
Q_ {\rm EC} $) value of $^{97} $ Tc has been conducted employing the high resolving power …

High-precision measurements of the atomic mass and electron-capture decay value of Tc

Z Ge, T Eronen, VA Sevestrean, O Niţescu… - arxiv preprint arxiv …, 2024 - arxiv.org
A direct measurement of the ground-state-to-ground-state electron-capture decay $ Q $
value of $^{95} $ Tc has been performed utilizing the double Penning trap mass …