caa a22 4500 44587287X CHVBK 20180317145517.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1140/epja/i2011-11091-6 doi (NATIONALLICENCE)springer-10.1140/epja/i2011-11091-6 First search for double- $ \beta$ decay of platinum by ultra-low background HP Ge $ \gamma$ spectrometry [Elektronische Daten] [P. Belli, R. Bernabei, F. Cappella, R. Cerulli, F. Danevich, A. Di Marco, A. Incicchitti, M. Laubenstein, S. Nagorny, S. Nisi, O. Polischuk, V. Tretyak] A search for double- $ \beta$ processes in 190Pt and 198Pt was realized with the help of ultra-low background HP Ge 468cm^3 $ \gamma$ spectrometer in the underground Gran Sasso National Laboratories of the INFN (Italy). After 1815 h of data taking with 42.5g platinum sample, T 1/2 limits on 2 $ \beta$ processes in 190Pt ( $ \varepsilon$ $ \beta^{+}_{}$ and 2 $ \varepsilon$ have been established on the level of 1014-1016y, 3 to 4 orders of magnitude higher than those known previously. In particular, a possible resonant double-electron capture in 190Pt was restricted on the level of 2.9×1016 y at 90% C.L. In addition, T 1/2 limit on 2 $ \beta^{-}_{}$ decay of 198Pt (2 $ \nu$ +0 $ \nu$ ) to the 2+ 1 excited level of 198Hg has been set at the first time: T 1/2 > 3.5×1018 y. The radiopurity level of the used platinum sample is reported. SIF, Springer-Verlag Berlin Heidelberg, 2011 Belli P. INFN Sezione di Roma "Tor Vergata”, I-00133, Rome, Italy aut Bernabei R. INFN Sezione di Roma "Tor Vergata”, I-00133, Rome, Italy aut Cappella F. INFN Sezione di Roma, I-00185, Rome, Italy aut Cerulli R. Laboratori Nazionali del Gran Sasso, INFN, I-67010, Assergi (Aq), Italy aut Danevich F. Institute for Nuclear Research, MSP 03680, Kyiv, Ukraine aut Di Marco A. INFN Sezione di Roma "Tor Vergata”, I-00133, Rome, Italy aut Incicchitti A. INFN Sezione di Roma, I-00185, Rome, Italy aut Laubenstein M. Laboratori Nazionali del Gran Sasso, INFN, I-67010, Assergi (Aq), Italy aut Nagorny S. Institute for Nuclear Research, MSP 03680, Kyiv, Ukraine aut Nisi S. Laboratori Nazionali del Gran Sasso, INFN, I-67010, Assergi (Aq), Italy aut Polischuk O. Institute for Nuclear Research, MSP 03680, Kyiv, Ukraine aut Tretyak V. Institute for Nuclear Research, MSP 03680, Kyiv, Ukraine aut The European Physical Journal A Springer-Verlag 47/8(2011-08-01), 1-8 1434-6001 47:8<1 2011 47 10050 https://doi.org/10.1140/epja/i2011-11091-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epja/i2011-11091-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Belli P. INFN Sezione di Roma "Tor Vergata”, I-00133, Rome, Italy aut NATIONALLICENCE 700 1- Bernabei R. INFN Sezione di Roma "Tor Vergata”, I-00133, Rome, Italy aut NATIONALLICENCE 700 1- Cappella F. INFN Sezione di Roma, I-00185, Rome, Italy aut NATIONALLICENCE 700 1- Cerulli R. Laboratori Nazionali del Gran Sasso, INFN, I-67010, Assergi (Aq), Italy aut NATIONALLICENCE 700 1- Danevich F. Institute for Nuclear Research, MSP 03680, Kyiv, Ukraine aut NATIONALLICENCE 700 1- Di Marco A. INFN Sezione di Roma "Tor Vergata”, I-00133, Rome, Italy aut NATIONALLICENCE 700 1- Incicchitti A. INFN Sezione di Roma, I-00185, Rome, Italy aut NATIONALLICENCE 700 1- Laubenstein M. Laboratori Nazionali del Gran Sasso, INFN, I-67010, Assergi (Aq), Italy aut NATIONALLICENCE 700 1- Nagorny S. Institute for Nuclear Research, MSP 03680, Kyiv, Ukraine aut NATIONALLICENCE 700 1- Nisi S. Laboratori Nazionali del Gran Sasso, INFN, I-67010, Assergi (Aq), Italy aut NATIONALLICENCE 700 1- Polischuk O. Institute for Nuclear Research, MSP 03680, Kyiv, Ukraine aut NATIONALLICENCE 700 1- Tretyak V. Institute for Nuclear Research, MSP 03680, Kyiv, Ukraine aut NATIONALLICENCE 773 0- The European Physical Journal A Springer-Verlag 47/8(2011-08-01), 1-8 1434-6001 47:8<1 2011 47 10050 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer