Main Image
Volume 334 - The 36th Annual International Symposium on Lattice Field Theory (LATTICE2018) - Weak Decays and Matrix Elements
Short Range Operator Contributions to $0\nu\beta\beta$ decay from LQCD
H. Monge-Camacho,* E. Berkowitz, D. Brantley, C. Chang, M. Clark, A.S. Gambhir, N. Garron, B. Joo, T. Kurth, A. Nicholson, E. Rinaldi, B. Tiburzi, P. Vranas, A. Walker-Loud
*corresponding author
Full text: pdf
Published on: 2019 May 29
Abstract
A strong candidate to search for new physics Beyond the Standard Model is neutrinoless decay. Observation of this very rare nuclear process which violates lepton number conservation, would imply the neutrino sector has a majorana mass component and may also provide an explanation for universe's matter-antimatter asymmetry. In the case a heavy majorana neutrino is exchanged in this process, QCD contributions from short range interactions may become relevant which involve the calculation of matrix elements with four-quark operators. In this proceedings I will discuss the current progress on the calculation of these four-quark operators from LQCD.
DOI: https://doi.org/10.22323/1.334.0263
Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.