INVESTIGATION OF THE BETA-BETA-DECAY OF CD-116 INTO EXCITED-STATES OF SN-116

被引：45

作者：

PIEPKE, A

BECK, M

BOCKHOLT, J

GLATTING, D

HEUSSER, G

KLAPDORKLEINGROTHAUS, HV

MAIER, B

PETRY, F

SCHMIDT-ROHR, U

STRECKER, H

VOLLINGER, M

BARABASH, AS

UMATOV, VI

MULLER, A

SUHONEN, J

机构：

[1] MAX PLANCK INST KERNPHYS, D-69029 HEIDELBERG, GERMANY

[2] MOSCOW THEORET & EXPTL PHYS INST, MOSCOW 117259, RUSSIA

[3] IST NAZL FIS NUCL, I-67010 ASSERGI, ITALY

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

来源：

NUCLEAR PHYSICS A | 1994年 / 577卷 / 3-4期

关键词：

CD-116(2-BETA); MEASURED T-1/2 LIMITS; ISOTOPICALLY ENRICHED CD SAMPLE; LOW-BACKGROUND GE DETECTOR; QUASI-PARTICLE RPA MODEL CALCULATION COMPARISON;

D O I：

10.1016/0375-9474(94)90930-X

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-116 into excited states of Sn-116 is experimentally and theoretically investigated. From an inclusive experiment, using an external source of isotopically enriched Cd, new most stringent limits for the allowed and non-standard-model decays into excited states are derived. It is further investigated whether the bremsstrahlung emitted by the beta beta electrons can be used to derive information on the ground-state decay. For the two-neutrino-decay mode a calculation, using the quasiparticle random-phase approximation, shows that the disadvantage in phase space, in comparison to the groundstate decay, is partially compensated through the nuclear-matrix element. Experimental perspectives for other beta beta-unstable nuclides are discussed.

引用

页码：493 / 510

页数：18

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