arXiv subjects

V. P. Gudkov

Publications and source records attributed to V. P. Gudkov.

3 recordsLinked to original sources

arXiv1997

Possible solution to basic problems regarding the coupling constants $G_V$ and $G_A$

The existing experimental evidence on the vector and axial-vector coupling constants, $G_V$ and $G_A$, for neutron $β$-decay exhibits two prominent problems: (i) the unitarity for the first row of the CKM matrix seems violated; (ii) one obtains different values of $G_A/G_V$ according to whether one uses as input the neutron lifetime or neutron-decay correlation observables. We show that the in-medium modification of $G_A$ can influence both the inner and outer radiative corrections used in deducing $G_V$ from the super-allowed Fermi transitions and that this effect may resolve the long-standing problems (i) and (ii) simultaneously.

nucl-th↗

arXiv1996

The CP-odd nucleon interaction and the value of T-violation in nuclei

The relations between the value of T- and P-violating correlations in neutron scattering and different models of CP violation are discussed. It is shown that a specific structure of CP-odd interactions gives the possibility to obtain the essential information about CP-odd interaction at the quark-gluon level from nuclear experimental data. The up-to-date estimations for CP- violating nucleon coupling constants show that CP violation in neutron scattering is sensitive to many models of CP violation.

nucl-th↗

arXiv1992

On the CP-odd Nucleon Potential

The CP-odd nucleon potential for different models of CP violation in the one meson exchange approximation is studied. It is shown that the main contribution is due to the $π$-meson exchange which leads to a simple one parameter CP-odd nucleon potential.

hep-ph↗