First results of the CUORICINO experiment
- M. Pedretti
- Eugene E. Haller
- Eugene E. Haller
- D. R. Artusa
- C. Brofferio
- R. J. Creswick
- R. J. McDonald
- A. de Waard
- Giorgio Frossati
- Marco Barucci
- C. Bucci
- Oliviero Cremonesi
- A. Giuliani
- P. Gorla
- Eric B. Norman
- C. Rosenfeld
- S. Cebrián
- S. Pirro
- Ezio Previtali
- V. Palmieri
- Monica Sisti
- M. Pyle
- Lara Risegari
- A. Nucciotti
- I. C. Bandac
- A. Fascilla
- F. T. Avignone
- G. Pessina
- Ettore Fiorini
- H. A. Farach
- F. Capozzi
- Edoardo Pasca
- M. Balata
- I. G. Irastorza
- L. Carbone
- M. Pavan
- C. Arnaboldi
- G. Ventura
- Jeffrey W. Beeman
- L. Torres
- A. Morales
- A. R. Smith
- Carlos Pobes
- Simone Capelli
- E. Olivieri
DOIAbstract
Preliminary results on double beta decay (DBD) of 130 Te, obtained in the first run of the CUORICINO experiment are presented. The set-up consists of an array of 62 crystals of TeO 2 operating as bolometers in a deep underground dilution unit at a temperature of about 10 mK. Due to a total mass of about 41 kg, CUORICINO represents by far the most massive running cryogenic mass to search for rare events. The achieved lower limit on the neutrinoless DBD is 5.5⋅10 23 years, that corresponds to a limit on the Majorana effective mass between 0.37 and 1.9 eV. Performances of the detectors together with the sensitivity estimation are discussed
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