Penguin-Induced Radiative Baryonic B Decays
release_revfgg2uenbhlnimydizoge27e
by
Hai-Yang Cheng, Kwei-Chou Yang
2002
Abstract
Weak radiative baryonic B decays B→_1_2γ mediated by the
electromagnetic penguin process b→ sγ have appreciable rates larger
than their two-body counterparts B→_1_2. The branching ratios for
B^-→Λp̅γ and B^-→Ξ^0Σ̅^-γ are sizable,
falling into the range of (1∼ 6)× 10^-6 with the value preferred to
be on the large side, and not far from the bottom baryon radiative decays
Λ_b→Λγ and Ξ_b→Ξγ due to the large
short-distance enhancement for b→ sγ penguin transition and the large
strong coupling of the anti-triplet bottom baryons with the B meson and the
light baryon. These penguin-induced radiative baryonic B decay modes should be
accessible by B factories.
In text/plain
format
Archived Content
There are no accessible files associated with this release. You could check other releases for this work for an accessible version.
Know of a fulltext copy of on the public web? Submit a URL and we will archive it
hep-ph/0201015v1
access all versions, variants, and formats of this works (eg, pre-prints)