Possible solution to basic problems regarding the coupling constants $G_V$ and $G_A$
| dc.creator | Gudkov, V. P. | |
| dc.creator | Kubodera, K. | |
| dc.date | 1997-06-26 | |
| dc.date | 1997-10-16 | |
| dc.date.accessioned | 2026-07-07T09:08:33Z | |
| dc.date.available | 2026-07-07T09:08:33Z | |
| dc.description | 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. | |
| dc.description | RevTeX | |
| dc.identifier | https://arxiv.org/abs/nucl-th/9706074 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/9706074 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/150756 | |
| dc.subject | Nuclear Theory | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Possible solution to basic problems regarding the coupling constants $G_V$ and $G_A$ | |
| dc.type | text |