6533b81ffe1ef96bd12779b9

RESEARCH PRODUCT

Investigation of the ββ decay of 116Cd into excited states of 116Sn

D. GlattingMarcus BeckA. MüllerU. Schmidt-rohrBerenike MaierM. VöllingerJouni SuhonenH. StreckerJ. BockholtF. PetryA. S. BarabashHans Volker Klapdor-kleingrothausG. HeusserA. PiepkeV. I. Umatov

subject

Nuclear physicsPhysicsNuclear and High Energy PhysicsDecay schemeBranching fractionExcited stateQuasiparticleBremsstrahlungHigh Energy Physics::ExperimentElectronNuclideAtomic physicsRandom phase approximation

description

Abstract The double-beta decay of 116Cd into excited states of 116Sn 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 ββ 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 ground-state decay, is partially compensated through the nuclear-matrix element. Experimental perspectives for other ββ-unstable nuclides are discussed.

https://doi.org/10.1016/0375-9474(94)90930-x