A search for double electron capture (2Ec), electron capture with positron emission (ECbeta+), and double positron emission (2beta+) in 136Ce and 138Ce was realized with a 465 cm3 ultra-low background HP Ge spectrometer over 2299 h at the Gran Sasso underground laboratory. A 627 g sample of cerium oxide deeply purified by liquid-liquid extraction method was used as a source of quanta expected in double decay of the cerium isotopes. New improved half-life limits were set on different modes and channels of double decay of 136Ce and 138Ce at the level of yr.

Belli, P., Bernabei, R., Boiko, R.s., Cappella, F., Cerulli, R., Danevich, F.a., et al. (2017). New limits on 2EC, ECbeta+, and 2beta+ decay of 136Ce and 138Ce with deeply purified cerium sample. THE EUROPEAN PHYSICAL JOURNAL. A, HADRONS AND NUCLEI, 53(8) [10.1140/epja/i2017-12360-0].

New limits on 2EC, ECbeta+, and 2beta+ decay of 136Ce and 138Ce with deeply purified cerium sample

Bernabei R
Supervision
;
2017-08-29

Abstract

A search for double electron capture (2Ec), electron capture with positron emission (ECbeta+), and double positron emission (2beta+) in 136Ce and 138Ce was realized with a 465 cm3 ultra-low background HP Ge spectrometer over 2299 h at the Gran Sasso underground laboratory. A 627 g sample of cerium oxide deeply purified by liquid-liquid extraction method was used as a source of quanta expected in double decay of the cerium isotopes. New improved half-life limits were set on different modes and channels of double decay of 136Ce and 138Ce at the level of yr.
29-ago-2017
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
English
Con Impact Factor ISI
double beta decay; underground physics; rare nuclear decays
https://epja.epj.org/articles/epja/abs/2017/08/10050_2017_Article_914/10050_2017_Article_914.html
Belli, P., Bernabei, R., Boiko, R.s., Cappella, F., Cerulli, R., Danevich, F.a., et al. (2017). New limits on 2EC, ECbeta+, and 2beta+ decay of 136Ce and 138Ce with deeply purified cerium sample. THE EUROPEAN PHYSICAL JOURNAL. A, HADRONS AND NUCLEI, 53(8) [10.1140/epja/i2017-12360-0].
Belli, P; Bernabei, R; Boiko, Rs; Cappella, F; Cerulli, R; Danevich, Fa; Incicchitti, A; Kropivyansky, Bn; Laubenstein, M; Mokina, Vm; Polischuk, Og; ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/202901
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