First Search for Lorentz and CPT Violation in Double Beta Decay with EXO-200

200 Collaboration, J. B. Albert, P. S. Barbeau +86

A search for Lorentz- and CPT-violating signals in the double beta decay spectrum of ${}^{136}$Xe has been performed using an exposure of 100 kg$\cdot$yr with the EXO-200 detector. N…