Chiral radiative corrections in potential model and the P-wave states of heavy-light mesons

In relativistic potential model of heavy-light mesons it is essential to incorporate the chiral radiative corrections before comparing the model predictions with data. Once the radiative corrections are taken into account the potential model can explain the unusual mass spectra and absence of the spin orbit-inversion in P-wave states.Comment: Talk presented at The 4th International Conference on Flavor Physics, Sep. 24-28, 2007, Beijin

Flavor dependence of normalization constant for an infrared renormalon

An ansatz is proposed for the flavor dependence of the normalization constant for the first IR renormalon in heavy quark pole mass.Comment: 4 pages. Published in Phys Lett

Why there is no spin-orbit inversion in heavy-light mesons?

We show that the absence of spin-orbit inversions in heavy-light mesons can be explained by the chiral radiative corrections in potential model. A new potential model estimate is given of the masses for P-wave bottom mesons.Comment: 10 pages, published in PR

Normalization Constants of Large Order Behavior

A perturbation scheme is discussed for the computation of the normalization constant of the large order behavior arising from an ultraviolet renormalon. In this scheme the normalization constant is expressed in a convergent series that can be calculated using the ordinary perturbative expansion and the nature of the renormalon singularity.Comment: 8 pages. To appear in Phys. Lett.