Hara Theorem, GIM model, and Asymmetry in Weak Radiative Hyperon Decays
| dc.creator | Bukina, E. N. | |
| dc.creator | Dubovik, V. M. | |
| dc.creator | Zamiralov, V. S. | |
| dc.date | 2000-03-30 | |
| dc.date.accessioned | 2026-07-07T03:41:03Z | |
| dc.date.available | 2026-07-07T03:41:03Z | |
| dc.description | It is shown that in the framework of GIM model,the parity-violating (PV) $Σ^{+}(uus) \Rightarrow p(uud) + γ$ decay amplitude does not vanish but just transforms into another PV decay amplitude, namely, of the $Ω^{+}_{cc}(ccs)\to Ξ^{+}_{cc}(ccd)+γ$ decay. The known result is used that the relevant part of the CP-invariant effective current$\times$ current Hamiltonian changes sign under simultaneous quark changes $d\leftrightarrow s$ and $u\leftrightarrow c$. So, asymmetry of $Σ^{+} \Rightarrow p + γ$ decay should not vanish in contrast to the Hara result of the old-fashioned $SU(3)_{f}$ model. At the same time, the zero asymmetry prediction persists for the $ Ξ^{-} \Rightarrow Σ^{-} + γ$ decay. | |
| dc.description | 8 pages, other comments | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0003295 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0003295 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/39495 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Hara Theorem, GIM model, and Asymmetry in Weak Radiative Hyperon Decays | |
| dc.type | text |