Molybdenum sample with mass of near 1 kg, enriched in 100Mo at 99,5 %, is used to confirm or reject previous reports on observation of 2β2ν decay of 100Mo to the first excited 01+ level of 100Ru at E(01+) = 1130,5 keV. Data are collected in the low-background set-up with 4 HP Ge detectors, each of 225 cm3 volume, in the Gran Sasso Underground Laboratory (Italy). After 1927 h of measurements, the reached sensitivity to the half-life is ∼5 1020 y; it does not allow to make definite conclusions on existence of the process searched for. Further measurements are in progress.
Belli, P., Bernabei, R., Boiko, R., Cerulli, R., Danevich, F., D'Angelo, S., et al. (2006). Preliminary results on the search for 100Mo 2β decay to the first excited 0_1^+ level of 100Ru. In International Conference on Current Problems in Nuclear Physics and Atomic Energy - Proceedings of the NPAE 2006 (pp. 479-482). Kiyv : INR-Kiyv.
Preliminary results on the search for 100Mo 2β decay to the first excited 0_1^+ level of 100Ru
Bernabei R;D'Angelo S;
2006-01-01
Abstract
Molybdenum sample with mass of near 1 kg, enriched in 100Mo at 99,5 %, is used to confirm or reject previous reports on observation of 2β2ν decay of 100Mo to the first excited 01+ level of 100Ru at E(01+) = 1130,5 keV. Data are collected in the low-background set-up with 4 HP Ge detectors, each of 225 cm3 volume, in the Gran Sasso Underground Laboratory (Italy). After 1927 h of measurements, the reached sensitivity to the half-life is ∼5 1020 y; it does not allow to make definite conclusions on existence of the process searched for. Further measurements are in progress.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.