Date of Award


Document Type

Campus Access Dissertation


Physics and Astronomy



First Advisor

Frank T. Avignone


The CUORICINO experiment was an array of 62 of TeO2 crystals arranged in 13 floors, with a total mass of 40.7 kg. It finished taking data in June 2008, giving a total of more than 3 years of active operating time and providing more than 18 kg y of 130Te of statistics. A search for both, the 0ν and 2ν double beta decay process to the first 0+ excited state in 130Xe was performed by studying both coincidence and anti-coincident possible scenarios. Each scenario has a different efficiency and because of this, an efficiency study was also made, taking into consideration the possibility of having non-active channels. The results of this study yielded efficiencies of up to 7% for CUORE and 6% for CUORICINO, and limits for the half lives of T1/2(130Te → 130Xe*) > 2.43 × 1023 y (90% C.L.), T1/2(130Te → 130Xe*) > 6 × 1023 y (90% C.L.) for CUORICINO. For the future experiment CUORE, which is a 988 array of TeO2 crystals with a total mass of 741 kg, a half life sensitivity of T1/2(130Te → 130Xe*) > 1.7 × 1025 y after 5 years of operation is expected.


© 2009, Carlos Eduardo Martinez