Hara Theorem, GIM model, and Asymmetry in Weak Radiative Hyperon Decays

Details Hara Theorem, GIM model, and Asymmetry in Weak Radiative Hyperon Decays Hara Theorem, GIM model, and Asymmetry in Weak Radiative Hyperon Decays

2000-03-30

arxiv.org/abs/hep-ph/0003295v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, other comments

Scientific paper

It is shown that in the framework of GIM model,the parity-violating (PV) $\Sigma^{+}(uus) \Rightarrow p(uud) + \gamma $ decay amplitude does not vanish but just transforms into another PV decay amplitude, namely, of the $\Omega^{+}_{cc}(ccs)\to \Xi^{+}_{cc}(ccd)+\gamma $ 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 $\Sigma^{+} \Rightarrow p + \gamma $ 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 $ \Xi^{-} \Rightarrow \Sigma^{-} + \gamma $ decay.

Affiliated with

Also associated with

No associations

Rating

Hara Theorem, GIM model, and Asymmetry in Weak Radiative Hyperon Decays does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Hara Theorem, GIM model, and Asymmetry in Weak Radiative Hyperon Decays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hara Theorem, GIM model, and Asymmetry in Weak Radiative Hyperon Decays will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-201741