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arXiv · 1011.4811

Search for beta plus/EC double beta decay of 120Te

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

We present a search for beta plus/EC double beta decay of 120Te performed with the CUORICINO experiment, an array of TeO2 cryogenic bolometers. After collecting 0.0573 kg y of 120Te, we see no evidence of a signal and therefore set the following limits on the half-life: T1/2 (0nu) > 1.9 10^{21} y at 90% C.L. for the 0 neutrino mode and T1/2 (2nu) > 7.6 10^{19} y at 90% C.L. for the two neutrino mode. These results improve the existing limits by almost three orders of magnitude (four in the case of 0 neutrino mode).

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E. Andreotti, C. Arnaboldi, F. T. Avignone III, M. Balata, I. Bandac, M. Barucci, J. W. Beeman, F. Bellini, C. Brofferio, A. Bryant, C. Bucci, L. Canonica, S. Capelli, L. Carbone, M. Carrettoni, M. Clemenza, O. Cremonesi, R. J. Creswick, S. Di Domizio, M. J. Dolinski, L. Ejzak, R. Faccini, H. A. Farach, E. Ferri, E. Fiorini, L. Foggetta, A. Giachero, L. Gironi, A. Giuliani, P. Gorla, E. Guardincerri, T. D. Gutierrez. E. E. Haller, K. Kazkaz, S. Kraft, L. Kogler, C. Maiano, R. H. Maruyama, C. Martinez, M. Martinez, L. Mizouni, S. Newman, S. Nisi, C. Nones, E. B. Norman, A. Nucciotti, F. Orio, M. Pallavicini, V. Palmieri, L. Pattavina, M. Pavan, M. Pedretti, G. Pessina, S. Pirro, E. Previtali, L. Risegari, C. Rosenfeld, C. Rusconi, C. Salvioni, S. Sangiorgio, D. Schaeffer, N. D. Scielzo, M. Sisti, A. R. Smith, C. Tomei, G. Ventura, M. Vignati. 2010-11-22. Search for beta plus/EC double beta decay of 120Te. https://doi.org/10.1016/j.astropartphys.2010.12.011

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