Alternative Form of the Parity-Violating Current for the Hyperon Weak Radiative Decays and Hara Theorem
| dc.creator | Bukina, E. N. | |
| dc.creator | Dubovik, V. M. | |
| dc.creator | Zamiralov, V. S. | |
| dc.date | 1999-06-24 | |
| dc.date.accessioned | 2026-07-07T04:07:28Z | |
| dc.date.available | 2026-07-07T04:07:28Z | |
| dc.description | It is shown that upon considering an alternative form of a parity-violating part of the transition electromagnetic current it is possible to reformulate Hara theorem in a way that it does not forbid any more nonzero asymmetry in the hyperon weak radiative decays $Σ^{+} \to p+γ$ and $Ξ^{-} \to Σ^{-}+γ$ in the limit of exact $SU(3)_{f}$ symmetry thus resolving a contradiction with the data and maybe revealing hitherto unseen transition toroid dipole moments. A result is consistent with the traditional one on the single-quark weak radiative transition models. We have also reproduced Vasanti formula at the quark level. As for two-quark weak radiative transitions we have found that the important part of it contains also a toroid dipole moment contribution which seems to be an intrinsic reason of the apparent contradiction between the Hara theorem conclusion and quark model results for hyperon weak radiative decays. | |
| dc.description | RevTex, 27 pages, submitted to Nucl. Phys. A | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9906477 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9906477 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/49154 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Alternative Form of the Parity-Violating Current for the Hyperon Weak Radiative Decays and Hara Theorem | |
| dc.type | text |