Muon Simulations for LEGEND 1000 Using a GEANT4 Framework

Neutrinoless double beta decay is a proposed rare decay which, if discovered, would confirm the Majorana nature of the neutrino. The LEGEND (Large Enriched Germanium Experiment for Neutrinoless Double-beta decay) collaboration aims to develop a phased, Ge-76 based double-beta decay experimental program with discovery potential at a half-life beyond 10$^{\mathrm{28}}$ years, using existing resources as appropriate to expedite physics results. LEGEND 1000 will be the second phase, and is in the early stages of development. One of the major concerns is the site selection for the experiment. LEGEND 1000 must be built in a deep underground laboratory to escape the bulk of the cosmic rays. A depth requirement analysis is being performed, using the GEANT4 particle simulation toolkit to simulate cosmic ray muons in a few proposed experiment designs. This talk will discuss this ongoing simulation effort.