Description
Nuclear physics, nuclear exotics
Neutinoless double beta decay is a lepton number violating decay which should be observable for some isotopes like Ge76 if neutrinos are Majorana particles. One historically important and still leading technology is using germanium detectors made from material with enriched Ge76 fraction. The talk discusses the recent results from GERDA and the preparations for the future LEGEND experiment.
The one-step decay ($A$ → $a_1$ + $A_1$) of the ground state of the resting parent nucleus A with the formation of real states of nucleus $A_1$ and particle $a_1$ is impossible, if the heat $Q_1$ of this decay, defined as $Q_1$ = $E_A$ − $E_{A_1}$ −$E_{a_1}$, where $E_A$, $E_{A_1}$ and $E_{a_1}$ are the internal energies of nuclei $A$, $A_1$ and particle $a_1$ , and connected at the...
Possible temporal variations of nucleus decay parameters studied extensively in the last years, their observation can be the signal of unknown physical effects. Earlier, several experiments reported the annual and daily decay rate oscillations in alpha and beta-decays of some nuclides of the order .05 % [1,2]. BGU - PhIAN experiment studies the decay rate variations in inverse beta-decay...
Description of the TAU-4 installation intended for long-term monitoring of the half-life value T1/2 of the 212Ро is presented. Natural thorium used as a source of the mother’s chain. The methods of measurement and processing of collected data are reported. Short testing measurements were made in the ground building (680 hours) and underground laboratory (564 hours). Averaged value...
The structure of the levels of the heavy helium isotope 7He have been studied in reactions of stopped pion absorption: 12С(pi–, p4He)X, 12С(pi–, d3He)X и 14С(pi–, t4He)X. Experiment was performed at low energy pion channel of the LANL using two-arm semiconductor spectrometer. Search for nuclear states was correlative measurements of missing mass spectra up to excitation energy of ~ 30 MeV.
$^{7}$He, a particle unstable nucleus is lying in the line of neutron – rich Helium isotopes between $^6$He with a neutron halo and $^{8}$He having a neutron skin [1]. Normally it is taken for granted that the notion “halo” could not be applied to unstable nuclei. However, if the time of life T of a particular nucleus is much larger than the characteristic time τ of flight of the escaping...
The results of studies of the interaction of ion beams and X-ray quanta with deuterated crystal structures at the HELIS facility (LPI) are presented. Results on research of DD-reactions in deuterated crystal structures at deuteron energies 10-25 keV are shown significant enhancement effect. It is shown that the effect of the beams of ions Ne+ and H+ at energies in the range of 10 - 25 keV and...
Three nucleon system(triton) was considered.
Relativistic properties of this system were investigated.
For this relativistic generalization of Faddeev approach was used.
As two particle T-matrix which contained in relativistic Faddeev equation we used solution of Bethe-Salpeter equation.
So eventually we had Bethe-Salpeter-Faddeev(BSF) equation for describe three nucleon system.
As potential...
