2νββ spectrum in chiral effective field theory

A bstract We investigate two-neutrino double beta decay (2 νββ ) in chiral effective field theory. We find contributions from weak magnetism and double-weak pion-exchange at next-to-leading-order in the chiral power counting. We discuss the impact of the chiral corrections on the electron spectra and find that they should be included in analyses of 2 νββ decay that aim to uncover new physics signatures in the electron spectrum. We illustrate this point by revisiting the effect of sterile neutrinos and non-standard charged interactions. We also find that the pion-exchange contributions involve nuclear matrix elements that are related to those appearing in neutrinoless double beta decay (0 νββ ). We investigate whether the 0 νββ nuclear matrix elements can be obtained from detailed measurements of the energy spectrum of the outgoing electrons in 2 νββ transitions.

Authors

Institutions

Publication Details

Journal
Journal of High Energy Physics
Published
2025-06-11
DOI
https://doi.org/10.1007/jhep06(2025)082
Citations
2
Primary Topic
Particle physics theoretical and experimental studies
Type
article
Field-Weighted Citation Impact
3.74

Funders

Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
article

2νββ spectrum in chiral effective field theory

Jordy de Vries, Emanuele Mereghetti, Ryan Bouabid, Vincenzo Cirigliano et al.
2 citations
Journal of High Energy Physics
Particle physics theoretical and experimental studies
3.74
article

2νββ spectrum in chiral effective field theory

Jordy de Vries, Emanuele Mereghetti, Ryan Bouabid, Vincenzo Cirigliano, S. el Morabit, Lukáš Gráf
article en
2 citations

Abstract

A bstract We investigate two-neutrino double beta decay (2 νββ ) in chiral effective field theory. We find contributions from weak magnetism and double-weak pion-exchange at next-to-leading-order in the chiral power counting. We discuss the impact of the chiral corrections on the electron spectra and find that they should be included in analyses of 2 νββ decay that aim to uncover new physics signatures in the electron spectrum. We illustrate this point by revisiting the effect of sterile neutrinos and non-standard charged interactions. We also find that the pion-exchange contributions involve nuclear matrix elements that are related to those appearing in neutrinoless double beta decay (0 νββ ). We investigate whether the 0 νββ nuclear matrix elements can be obtained from detailed measurements of the energy spectrum of the outgoing electrons in 2 νββ transitions.

Journal of High Energy PhysicsVol. 2025(6)
Los Alamos National Laboratory (US), Duke University (US), University of Washington (US), Charles University (CZ), National Institute for Subatomic Physics (NL), University of Amsterdam (NL)
U.S. Department of Energy, Univerzita Karlova v Praze, Nederlandse Organisatie voor Wetenschappelijk Onderzoek, Office of Science, National Nuclear Security Administration, Workforce Development for Teachers and Scientists, Los Alamos National Laboratory
Openalex Percentile: Top 8%
Particle physics theoretical and experimental studies
3.74
DOIOpen Access PDFOpenAlex
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.