Search for the Double Beta Decays of Xe-134 with EXO-200 Phase 2 Data*

EXO-200 was an enriched liquid xenon time projection chamber experiment that operated at the Waste Isolation Pilot Plant underground site from 2011 to 2018. EXO-200 made the first measurement of 2νββ decay of ¹³⁶Xe and set some of the most stringent constraints on the 0νββ decay mode. Another double beta decaying isotope, ¹³⁴Xe, was present in a 19.4% mix in the EXO-200 xenon source. Neither the 2νββ nor 0νββ decay modes have been observed for this isotope. We present the status of a search for double beta decays of ¹³⁴Xe with the EXO-200 Phase 2 data.