Radiative B decays to the axial $K$ mesons at next-to-leading order

Details Radiative B decays to the axial $K$ mesons at next-to-leading order Radiative B decays to the axial $K$ mesons at next-to-leading order

2004-03-03

arxiv.org/abs/hep-ph/0403034v2

Phys.Rev.D69:114007,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

17pages, 4 figures. Minor changes, typos corrected. PRD accepted version

Scientific paper

10.1103/PhysRevD.69.114007

We calculate the branching ratios of $B\to K_1\gamma$ at next-to-leading order (NLO) of $\alpha_s$ where $K_1$ is the orbitally excited axial vector meson. The NLO decay amplitude is divided into the vertex correction and the hard spectator interaction part. The one is proportional to the weak form factor of $B\to K_1$ transition while the other is a convolution between light-cone distribution amplitudes and hard scattering kernel. Using the light-cone sum rule results for the form factor, we have $\calB(B^0\to K_1^0(1270)\gamma)=(0.828\pm0.335)\times 10^{-5}$ and $\calB(B^0\to K_1^0(1400)\gamma)=(0.393\pm0.151)\times 10^{-5}$.

Affiliated with

Also associated with

No associations

Rating

Radiative B decays to the axial $K$ mesons at next-to-leading order 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 Radiative B decays to the axial $K$ mesons at next-to-leading order, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radiative B decays to the axial $K$ mesons at next-to-leading order will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-335365