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Muon capture rates: Evaluation within the Quasiparticle Random Phase Approximation
Fedor Simkovic, Rastislav Dvornicky, Petr Vogel
The Quasiparticle Random Phase Approximation (QRPA) is used in evaluation of the total muon capture ratesfor the final nuclei participating in double-beta decay. Several variants o…
The -decay nuclear matrix element for light and heavy neutrino mass mechanisms from deformed QRPA cacluations for Ge, Se, Te, Xe and Nd with isospin restoration
Dong-Liang Fang, Amand Faessler, Fedor Šimkovic
In this work, with restored isospin symmetry, we evaluated the neutrinoless double beta decay nuclear matrix elements for Ge, Se, Te, Xe and N…
Reproduction of exact solutions of Lipkin model by nonlinear random-phase approximation
J. Terasaki, A. Smetana, F. Šimkovic +1
It is shown that the random-phase approximation (RPA) method with its nonlinear generalization, which was previously considered as approximation, reproduces the exact solutions of…
Neutrino Mass, Electron Capture and the Shake-off Contributions
Amand Faessler, Loredana Gastaldo, Fedor Simkovic
Electron capture can determine the electron neutrino mass, while the beta decay of Tritium measures the electron antineutrino mass and the neutrinoless double beta decay observes t…
Can one measure the Cosmic Neutrino Background?
Amand Faessler, Rastislav Hodak, Sergey Kovalenko +1
The Cosmic Microwave Background (CMB) yields information about our Universe at around 380 000 years after the Big Bang (BB). Due to the weak interaction of the neutrinos with matte…
Partial restoration of isospin symmetry for neutrinoless double beta decay in the deformed nuclear system of Nd
Dong-Liang Fang, Amand Faessler, Fedor Simkovic
In this work, we calculate the matrix elements of -decay of Nd with the deformed pn-QRPA method. We adopted the approach introduced by Rodin, Faessler [Phys. Rev. C84…