The computer code DECAY4 is developed to generate initial energy, time and angular distributions of particles emitted in radioactive decays of nuclides and nuclear (atomic) deexcitations. Data for description of nuclear and atomic decay schemes are taken from the ENSDF and EADL database libraries. The examples of use of the DECAY4 code in several underground experiments are described.

The indication for the α decay of 180 W with a half-life T

No abstract

A new lifetime limit on the charge nonconserving ͑CNC͒ electron decay through the channel e Ϫ → e ␥ has been established analyzing a 2257.7 kg day event sample collected by the Ӎ6.5 kg liquid xenon DAMA scintillator at the Gran Sasso National Laboratory of INFN. This limit is Ͼ2.0(3.4)ϫ10 26 yr at 90% ͑68%͒ C.L., one order of magnitude higher than the current limit for that channel.