B --> pi and B --> K transitions in partially quenched chiral perturbation theory

Details B --> pi and B --> K transitions in partially quenched chiral perturbation theory B --> pi and B --> K transitions in partially quenched chiral perturbation theory

2003-04-30

arxiv.org/abs/hep-lat/0305001v3

Phys.Rev. D68 (2003) 074003

Physics

High Energy Physics

High Energy Physics - Lattice

Published version

Scientific paper

10.1103/PhysRevD.68.074003

We study the properties of the B-->pi and B-->K transition form factors in partially quenched QCD by using the approach of partially quenched chiral perturbation theory combined with the static heavy quark limit. We show that the form factors change almost linearly when varying the value of the sea quark mass, whereas the dependence on the valence quark mass contains both the standard and chirally divergent (quenched) logarithms. A simple strategy for the chiral extrapolations in the lattice studies with Nsea=2 is suggested. It consists of the linear extrapolations from the realistically accessible quark masses, first in the sea and then in the valence quark mass. From the present approach, we estimate the uncertainty induced by such extrapolations to be within 5%.

Affiliated with

Also associated with

No associations

Rating

B --> pi and B --> K transitions in partially quenched chiral perturbation theory 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 B --> pi and B --> K transitions in partially quenched chiral perturbation theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and B --> pi and B --> K transitions in partially quenched chiral perturbation theory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-272255