https://doi.org/10.1140/epja/i2004-10122-9
A search for spontaneous emission of heavy clusters in the 127I nuclide
1
Dipartimento di Fisica, Università di Roma “Tor Vergata” and INFN, Sezione di Roma2, I-00133, Roma, Italy
2
Dipartimento di Fisica, Università di Roma “La Sapienza” and INFN, Sezione di Roma, I-00185, Roma, Italy
3
INFN - Laboratori Nazionali del Gran Sasso, I-67010, Assergi (AQ), Italy
4
IHEP, Chinese Academy, P.O. Box 918/3, 100049, Beijing, PRC
5
Institute for Nuclear Research, MSP, 03680, Kiev, Ukraine
* e-mail: rita.bernabei@roma2.infn.it
Received:
26
October
2004
Accepted:
5
January
2005
Published online:
27
January
2005
The results of an experimental search for spontaneous cluster decay in 127I are presented. Several possible channels have been investigated considering an exposure of 33834 kg . day collected by a large-mass highly radiopure NaI(Tl) set-up deep underground in the Gran Sasso National Laboratory of the INFN. New lower limits on the lifetime of 24 10Ne, 28 12Mg, 30 12Mg, 32 14Si, 34 14Si, 48 20Ca, 49 21Sc cluster radioactivity in 127I have been achieved.
PACS: 21.65.+f Nuclear matter – / 27.60.+j 90 ⩽ A ⩽ 149 – / 23.60.+e α decay – / 29.40.Mc Scintillation detectors –
© Società Italiana di Fisica and Springer-Verlag, 2005