Ab Initio Calculation of the Contact Operator Contribution in the Standard Mechanism for Neutrinoless Double Beta Decay

Starting from chiral nuclear interactions, we evaluate the contribution of the leading-order contact transition operator to the nuclear matrix element (NME) of neutrinoless double-beta decay, assuming a light Majorana neutrino-exchange mechanism. The corresponding low-energy constant (LEC) is determ...

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Veröffentlicht in:	Physical review letters 2021-12, Vol.127 (24), p.242502-242502, Article 242502
Hauptverfasser:	Wirth, R, Yao, J M, Hergert, H
Format:	Artikel
Sprache:	eng
Schlagworte:	Ab initio calculations Neutrinoless double beta decay NUCLEAR PHYSICS AND RADIATION PHYSICS Nuclear structure & decays PHYSICS OF ELEMENTARY PARTICLES AND FIELDS Renormalization group
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