Nuclear Matrix Elements for Neutrinoless Double-Beta Decay from Lattice QCD

Conference · Tue Dec 19 00:00:00 EST 2023 · No journal information

DOI:https://doi.org/10.2172/2246927· OSTI ID:2246927

Grebe, Anthony V. ^[1]; Davoudi, Z. ^[1]; Detmold, W. ^[1]; Fu, Z. ^[1]; Jay, W. ^[1]; Murphy, D. ^[1]; Oare, P. ^[1]; Shanahan, P. ^[1]

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1. Fermilab

Neutrinoless double-beta decay (0vbb) is a hypothetical nuclear decay that is only possible if the neutrino is a Majorana fermion. Experimental searches for this process with ever-increasing sensitivity have placed strong constraints on the 0vbb half-lives of relevant isotopes. Relating these experimental half-lives to the underlying particle physics -- the effective Majorana mass of the neutrino -- requires understanding of the nuclear matrix elements for the transition. These matrix elements can be computed within a nuclear effective field theory framework, but input from lattice QCD is necessary to constrain low-energy constants relevant for the decay. This talk will discuss calculations of these matrix elements using lattice QCD and the implications for determination of nuclear EFT parameters.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: US Department of Energy
• DOE Contract Number: AC02-07CH11359; 89243024CSC000002
• OSTI ID: 2246927
• Report Number(s): FERMILAB-SLIDES-23-381-T; oai:inspirehep.net:2738405
• Resource Type: Conference presentation
• Conference Information: Journal Name: No journal information
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS