Search for β/EC double beta decay of Te

E. Andreotti (1) , C. Arnaboldi (2) , F.T. Avignone Iii (3) , M. Balata , I. Bandac (3) , M. Barucci (4) , J.W. Beeman , F. Bellini (5) , C. Brofferio (2) , A. Bryant (6) , C. Bucci , L. Canonica (7) , S. Capelli (2) , L. Carbone , M. Carrettoni (2) , M. Clemenza (2) , O. Cremonesi , R.J. Creswick (3) , S. Di Domizio (7) , M.J. Dolinski (6) , L. Ejzak (8) , R. Faccini (5) , H.A. Farach (3) , E. Ferri (2) , E. Fiorini (2) , L. Foggetta (1) , A. Giachero , L. Gironi (2) , A. Giuliani (1) , P. Gorla , E. Guardincerri , T.D. Gutierrez (9) , E.E. Haller (10) , K. Kazkaz , S. Kraft (2) , L. Kogler (6) , C. Maiano (2) , R.H. Maruyama (8) , C. Martinez (3) , M. Martinez , S. Newman (3) , S. Nisi , C. Nones (1) , E.B. Norman (11) , A. Nucciotti (2) , F. Orio (5) , M. Pallavicini (7) , V. Palmieri , L. Pattavina (2) , M. Pavan (2) , M. Pedretti , G. Pessina , S. Pirro , E. Previtali , L. Risegari (4) , C. Rosenfeld (3) , C. Rusconi (1) , C. Salvioni (1) , S. Sangiorgio (8) , D. Schaeffer (2) , N.D. Scielzo , M. Sisti (2) , A.R. Smith , C. Tomei (5) , G. Ventura (4) , M. Vignati (5)

1 Uninsubria - Universitá degli Studi dell’Insubria = University of Insubria [Varese]
2 Dipartimento di Fisica "Giuseppe Occhialini" = Department of Physics "Giuseppe Occhialini" [Milano-Bicocca]
3 Department of Physics and Astronomy [Columbia]
4 Dipartimento di Fisica e Astronomia [Firenze]
5 INFN - Istituto Nazionale di Fisica Nucleare [Sezione di Roma 1]
6 Dept. of Physics
7 UniGe - Università degli studi di Genova = University of Genoa
8 University of Wisconsin-Madison
9 CAL POLY - California Polytechnic State University [San Luis Obispo]
10 Department of Materials Science and Engineering [Berkeley]
11 Dept. of Nuclear Engineering

We present a search for β/EC double beta decay of Te performed with the CUORICINO experiment, an array of TeO cryogenic bolometers. After collecting 0.0573 kg y of 120, we see no evidence of a signal and therefore set the following limits on the half-life: T > 1.9 *10 y at 90% C.L. for the 0ν mode and T > 7.6 *10 y at 90% C.L. for the 2ν mode. These results improve the existing limits by almost three orders of magnitude (four in the case of 0ν mode).

Mots clés: Neutrino mass; Bolometers; Neutrino properties; Double beta decay; Electron capture

Domaines: Cosmologie et astrophysique extra-galactique [astro-ph.CO]; Cosmologie et astrophysique extra-galactique [astro-ph.CO]

E. Andreotti, C. Arnaboldi, F.T. Avignone Iii, M. Balata, I. Bandac, et al.. Search for β/EC double beta decay of Te. Astroparticle Physics, 2011, 34 (8), pp.643. ⟨10.1016/j.astropartphys.2010.12.011⟩. ⟨hal-00724416⟩