New Leading Contribution to Neutrinoless Double-beta Decay
Name:
PhysRevLett.120.202001.pdf
Size:
406.4Kb
Format:
PDF
Description:
Final Published version
Publisher
AMER PHYSICAL SOCCitation
Cirigliano, V., Dekens, W., De Vries, J., Graesser, M. L., Mereghetti, E., Pastore, S., & Van Kolck, U. (2018). New Leading Contribution to Neutrinoless Double-β Decay. Physical review letters, 120(20), 202001. https://doi.org/10.1103/PhysRevLett.120.202001Journal
PHYSICAL REVIEW LETTERSRights
Copyright © The Author(s). Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
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 coordinatespace 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. Finally, we speculate on the impact of this new contribution on nuclear matrix elements of relevance to experiment.ISSN
0031-90071079-7114
PubMed ID
29864333Version
Final published versionSponsors
DOE topical collaboration on "Nuclear Theory for Double-Beta Decay and Fundamental Symmetries"; Dutch Organization for Scientific Research (NWO); U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-FG02-04ER41338]; European Union Research and Innovation program Horizon 2020 [654002]Additional Links
https://link.aps.org/doi/10.1103/PhysRevLett.120.202001Scopus Count
Collections
Except where otherwise noted, this item's license is described as Copyright © The Author(s). Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license.