Abstract
The search for neutrinoless double beta decay of nuclei is believed to be one of the most promising means to search for new physics. 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 the universe matter-antimatter asymmetry of the universe. In the case where a heavy intermediate particle is exchanged in this process, QCD contributions from short range interactions become relevant and the calculation of matrix elements with four-quark operators becomes necessary. In these proceedings we will discuss our current progress in the calculation of these four-quark operators from LQCD.
| Original language | English |
|---|---|
| Article number | 263 |
| Journal | Proceedings of Science |
| Volume | 334 |
| State | Published - 2018 |
| Externally published | Yes |
| Event | 36th Annual International Symposium on Lattice Field Theory, LATTICE 2018 - East Lansing, United States Duration: Jul 22 2018 → Jul 28 2018 |
Funding
The work of HMC was supported in part by the US DOE Nuclear Physics Double Beta Decay Topical Collaboration and the DOE Early Career Award Program. Numerical calculations were performed with Chroma [25], accelerated by QUDA [26, 27] and performed at LLNL through the LLNL Multiprogrammatic and Institutional Computing program through a Tier 1 Grand Challenge award, and on Titan, a resource of the Oak Ridge Leadership Computing Facility at the Oak Ridge National Laboratory, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC05-00OR22725, through a 2016 INCITE award.
| Funders | Funder number |
|---|---|
| DOE Nuclear Physics Double Beta Decay Topical Collaboration | |
| Oak | |
| QUDA | |
| US DOE Nuclear Physics Double Beta Decay Topical Collaboration | |
| U.S. Department of Energy | DE-AC05-00OR22725 |
| Office of Science | |
| Lawrence Livermore National Laboratory | |
| Oak Ridge National Laboratory |