Theoretical and experimental investigation of the double beta processes in Cd-106

被引：49

作者：

Barabash, AS

Umatov, VI

Gurriaran, R

Hubert, F

Hubert, P

Aunola, M

机构：

[1] CEN, IN2P3, CNRS, F-33175 GRADIGNAN, FRANCE

[2] UNIV BORDEAUX, F-33175 GRADIGNAN, FRANCE

[3] UNIV JYVASKYLA, DEPT PHYS, SF-40351 JYVASKYLA, FINLAND

来源：

NUCLEAR PHYSICS A | 1996年 / 604卷 / 02期

关键词：

radioactivity Cd-106(beta(+)beta(+); beta(+)EC; ECEC); measured T-1/2 limits; low-background Ge detector; quasiparticle RPA model calculations;

D O I：

10.1016/0375-9474(96)00138-8

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The double beta decay of Cd-106 to the ground and excited states of Pd-106 is investigated both theoretically and experimentally. The quasiparticle random-phase approximation approach is used for the two-neutrino decay mode calculations. Estimations show that detections of beta(+)EC decays to the ground state and 0(1)(+) excited state and ECEC(0(+) --> 0(1)(+)) transition could be detected with today low-background techniques. Using a HPGe detector and an external source of natural cadmium, new stringent limits on beta(+)beta(+)(0 nu + 2 nu), beta(+)EC(0 nu + 2 nu) and ECEC(0 nu + 2 nu) decays into the ground and excited states are derived.

引用

页码：115 / 128

页数：14