학술논문

Microscopic quasiparticle–phonon description of beta decays of 113Cd and 115In using proton–neutron phonons
Document Type
Article
Source
Physics Letters B. Nov2007, Vol. 657 Issue 1-3, p38-42. 5p.
Subject
*PARTICLES (Nuclear physics)
*RADIOACTIVE decay
*LATTICE dynamics
*SPECTRUM analysis
Language
ISSN
0370-2693
Abstract
Abstract: The fourth-forbidden non-unique ground-state-to-ground-state beta decays of 113Cd and 115In are calculated using a realistic microscopic two-body interaction and a realistic single-particle model space. To describe the involved initial and final nuclear states we introduce a proton–neutron variant of the microscopic quasiparticle–phonon model (MQPM), the proton–neutron MQPM (pnMQPM). The states of the pnMQPM are created by coupling quasiparticles with phonons of the proton–neutron quasiparticle random-phase approximation (pnQRPA). The computed half-lives and values are found to be in excellent agreement with experimental data. Computed beta spectra of the decays are also given. [Copyright &y& Elsevier]