Zobrazeno 1 - 10
of 1 307
pro vyhledávání: '"FAESSLER, AMAND"'
Autor:
Fang, Dong-Liang, Faessler, Amand
Publikováno v:
Physics. Rev. C107,015501(2023)
We develop the formalism for calculating the decay rate of neutrinoless double beta decay to the $2^+$ excited states within L-R symmetric model. We consider the effects from induced hadronic currents up to NLO. The QRPA method in a spherical basis i
Externí odkaz:
http://arxiv.org/abs/2208.08595
Autor:
Fang, Dong-Liang, Faessler, Amand
Publikováno v:
Phys. Rev. C 103, 045501 (2021)
In this work we present the first beyond closure calculation for the neutrinoless double beta decay ($0\nu\beta\beta$) of $^{76}$Ge to the first $2^+$ states of $^{76}$Se. The isospin symmetry restored Quasi-particle random phase approximation (QRPA)
Externí odkaz:
http://arxiv.org/abs/2101.03299
Autor:
Fang, Dong-Liang, Faessler, Amand
With partially restored isospin symmetry, we calculate the nuclear matrix element for a special decay mode of $2\nu\beta\beta$ (two neutrino double beta decay) -- the decay to the first $2^+$ excited states. With the realistic CD-Bonn nuclear force,
Externí odkaz:
http://arxiv.org/abs/2004.10374
Autor:
Obukhovsky, Igor T., Faessler, Amand, Fedorov, Dimitry K., Gutsche, Thomas, Lyubovitskij, Valery E.
Publikováno v:
Phys. Rev. D 100, 094013 (2019)
A workable basis of quark configurations $s^3$, $s^2p$ and $sp^2$ at light front has been constructed to describe the high-$Q^2$ behavior of transition form factors and helicity amplitudes in the electroproduction of the lightest nucleon resonances,
Externí odkaz:
http://arxiv.org/abs/1909.13787
Publikováno v:
Phys.Rev. C97 (2018) no.3, 034315
An improved formalism of the two-neutrino double-beta decay ($2\nu\beta\beta$-decay) rate is presented, which takes into account the dependence of energy denominators on lepton energies via the Taylor expansion. Till now, only the leading term in thi
Externí odkaz:
http://arxiv.org/abs/1804.04227
Publikováno v:
Fron. in Phys. 5 (2017) 57
The $\lambda$ mechanism ($W_L$-$W_R$ exchange) of the neutrinoless double beta decay ($0\nu\beta\beta$-decay), which has origin in left-right symmetric model with right-handed gauge boson at TeV scale, is investigated. The revisited formalism of the
Externí odkaz:
http://arxiv.org/abs/1804.04223
Publikováno v:
Phys. Rev. C 97, 045503 (2018)
In this work, with restored isospin symmetry, we evaluated the neutrinoless double beta decay nuclear matrix elements for $^{76}$Ge, $^{82}$Se, $^{130}$Te, $^{136}$Xe and $^{150}$Nd for both the light and heavy neutrino mass mechanisms using the defo
Externí odkaz:
http://arxiv.org/abs/1803.09195
Publikováno v:
Phys. Rev. D 96, 074027 (2017)
The strong decays of the two resonances $\eta(2225)$ and $\phi(2170)$ are discussed for selected decay channels. The two resonances are considered as the $\Lambda \bar{\Lambda}$ bound states in the molecular scenario. The phenomenological hadronic mo
Externí odkaz:
http://arxiv.org/abs/1705.09631
Autor:
Faessler, Amand
There are three different methods used to search the neutrino mass: - The electron antineutrino mass can probably best be determined by the Triton decay. - The neutrinoless Double Beta Decay yields information, if the neutrino is a Dirac or a Majoran
Externí odkaz:
http://arxiv.org/abs/1703.06318
Publikováno v:
Phys. Rev. C 95, 045502 (2017)
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 the Majorana neutrino mass. Electron capture e. g. on 163Ho plus bound
Externí odkaz:
http://arxiv.org/abs/1611.00325