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Nuclear Matrix Elements for Neutrinoless Double-Beta Decay

High Energy Physics - Lattice 2025-04-29 v2

Abstract

Neutrinoless double-beta decay (0νββ0\nu\beta\beta) is a rare hypothesised process that, if discovered, would establish that the neutrino is Majorana, that is, it is its own antiparticle. Interpretation of experimental results relies on knowledge of nuclear matrix elements, whose large model uncertainty is the limiting factor in comparing measured (bounds on) half-lives to the neutrino mass. Nuclear effective field theory and lattice QCD have the potential to compute these matrix elements with better control over uncertainties, enhancing the discovery potential of next-generation 0νββ0\nu\beta\beta experiments. This work will survey various lattice QCD double-beta decay calculations and discuss their implications.

Keywords

Cite

@article{arxiv.2504.00358,
  title  = {Nuclear Matrix Elements for Neutrinoless Double-Beta Decay},
  author = {Anthony V. Grebe},
  journal= {arXiv preprint arXiv:2504.00358},
  year   = {2025}
}

Comments

Proceedings of the 41st International Symposium on Lattice Field Theory (Lattice2024)

R2 v1 2026-06-28T22:41:41.415Z