Chiral two-body currents in nuclei: Gamow-Teller transitions and neutrinoless double-beta decay

J. Menéndez*, D. Gazit, A. Schwenk

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

177 Scopus citations

Abstract

We show that chiral effective field theory (EFT) two-body currents provide important contributions to the quenching of low-momentum-transfer Gamow-Teller transitions, and use chiral EFT to predict the momentum-transfer dependence that is probed in neutrinoless double-beta (0νββ) decay. We then calculate for the first time the 0νββ decay operator based on chiral EFT currents and study the nuclear matrix elements at successive orders. The contributions from chiral two-body currents are significant and should be included in all calculations.

Original languageAmerican English
Article number062501
JournalPhysical Review Letters
Volume107
Issue number6
DOIs
StatePublished - 1 Aug 2011

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