skip to main content

DOE PAGESDOE PAGES

Title: New Leading Contribution to Neutrinoless Double- β Decay

Within the framework of chiral effective field theory, we discuss the leading contributions to the neutrinoless double-beta decay transition operator induced by light Majorana neutrinos. Based on renormalization arguments in both dimensional regularization with minimal subtraction and a coordinate-space cutoff scheme, we show the need to introduce a leading-order short-range operator, missing in all current calculations. We discuss strategies to determine the finite part of the short-range coupling by matching to lattice QCD or by relating it via chiral symmetry to isospin-breaking observables in the two-nucleon sector. Lastly, we speculate on the impact of this new contribution on nuclear matrix elements of relevance to experiment.
Authors:
ORCiD logo [1] ; ORCiD logo [1] ;  [2] ; ORCiD logo [1] ; ORCiD logo [1] ; ORCiD logo [1] ;  [3]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Nikhef, Amsterdam (The Netherlands)
  3. Univ. Paris-Saclay, Orsay (France); Univ. of Arizona, Tucson, AZ (United States)
Publication Date:
Report Number(s):
LA-UR-18-21404
Journal ID: ISSN 0031-9007; PRLTAO
Grant/Contract Number:
AC52-06NA25396; FG02-04ER41338
Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 120; Journal Issue: 20; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE Laboratory Directed Research and Development (LDRD) Program
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; Atomic and Nuclear Physics
OSTI Identifier:
1437329
Alternate Identifier(s):
OSTI ID: 1480024

Cirigliano, Vincenzo, Dekens, Wouter Gerard, de Vries, Jordy, Graesser, Michael Lawrence, Mereghetti, Emanuele, Pastore, Saori, and van Kolck, Ubirajara. New Leading Contribution to Neutrinoless Double-β Decay. United States: N. p., Web. doi:10.1103/PhysRevLett.120.202001.
Cirigliano, Vincenzo, Dekens, Wouter Gerard, de Vries, Jordy, Graesser, Michael Lawrence, Mereghetti, Emanuele, Pastore, Saori, & van Kolck, Ubirajara. New Leading Contribution to Neutrinoless Double-β Decay. United States. doi:10.1103/PhysRevLett.120.202001.
Cirigliano, Vincenzo, Dekens, Wouter Gerard, de Vries, Jordy, Graesser, Michael Lawrence, Mereghetti, Emanuele, Pastore, Saori, and van Kolck, Ubirajara. 2018. "New Leading Contribution to Neutrinoless Double-β Decay". United States. doi:10.1103/PhysRevLett.120.202001.
@article{osti_1437329,
title = {New Leading Contribution to Neutrinoless Double-β Decay},
author = {Cirigliano, Vincenzo and Dekens, Wouter Gerard and de Vries, Jordy and Graesser, Michael Lawrence and Mereghetti, Emanuele and Pastore, Saori and van Kolck, Ubirajara},
abstractNote = {Within the framework of chiral effective field theory, we discuss the leading contributions to the neutrinoless double-beta decay transition operator induced by light Majorana neutrinos. Based on renormalization arguments in both dimensional regularization with minimal subtraction and a coordinate-space cutoff scheme, we show the need to introduce a leading-order short-range operator, missing in all current calculations. We discuss strategies to determine the finite part of the short-range coupling by matching to lattice QCD or by relating it via chiral symmetry to isospin-breaking observables in the two-nucleon sector. Lastly, we speculate on the impact of this new contribution on nuclear matrix elements of relevance to experiment.},
doi = {10.1103/PhysRevLett.120.202001},
journal = {Physical Review Letters},
number = 20,
volume = 120,
place = {United States},
year = {2018},
month = {5}
}