Quenched Chiral Corrections to Heavy-Light Decay Constants at Order 1/M

Details Quenched Chiral Corrections to Heavy-Light Decay Constants at Order 1/M Quenched Chiral Corrections to Heavy-Light Decay Constants at Order 1/M

1994-12-05

arxiv.org/abs/hep-ph/9412228v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, Latex, 6 postscript figures (included separately). Complete ps available at http://www.phys.ufl.edu/~booth/papers/qu

Scientific paper

Quenched chiral perturbation is used to study the decay constants for heavy-light mesons beyond the leading order in 1/M. The results are used to estimate the error in quenched lattice calculations of the decay constants. For the double ratio $R_1 = ( f_{D_s}/f_D) / (f_{B_s}/f_B)$ we find that the error is small, conservatively 6%, but likely smaller. We also find that quenching decreases the ratio $f_{D_s}/f_D$ relative to the unquenched theory.

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