%0 Journal Article
%T New experimental limits on the alpha decays of lead isotopes
%A J. W. Beeman
%A F. Bellini
%A L. Cardani
%A N. Casali
%A S. Di Domizio
%A E. Fiorini
%A L. Gironi
%A S. S. Nagorny
%A S. Nisi
%A F. Orio
%A L. Pattavina
%A G. Pessina
%A G. Piperno
%A S. Pirro
%A E. Previtali
%A C. Rusconi
%A C. Tomei
%A M. Vignati
%J Physics
%D 2012
%I arXiv
%R 10.1140/epja/i2013-13050-7
%X For the first time a PbWO4 crystal was grown using ancient Roman lead and it was run as a cryogenic detector. Thanks to the simultaneous and independent read-out of heat and scintillation light, the detector was able to discriminate beta/gamma interactions with respect to alpha particles down to low energies. New more stringent limits on the alpha decays of the lead isotopes are presented. In particular a limit of T_{1/2} > 1.4*10^20 y at a 90% C.L. was evaluated for the alpha decay of 204Pb to 200Hg.
%U http://arxiv.org/abs/1212.2422v2