Isgur-Wise function in a QCD inspired potential model with WKB Approximation

TL;DR

This paper employs WKB approximation within a QCD-inspired potential model to calculate the slope and curvature of the Isgur-Wise function, comparing its effectiveness with other approximation methods.

Contribution

It extends approximation techniques to QCD-inspired models, demonstrating the effective range and advantages of WKB approximation over Dalgarno and VIPT methods.

Findings

WKB approximation provides reliable calculations for the Isgur-Wise function.

The method identifies an effective distance range for calculations.

Comparison shows WKB's advantages over other approximation methods.

Abstract

We use WKB Approximation in the calculation of slope and curvature of Isgur-Wise function in a QCD inspired potential model.This work is an extension of the approximation methods to the QCD inspired potential model.The approach hints at an effective range of distance for the calculation of slope and curvature of Isgur-Wise function.Comparision is also made with those of Dalgarno and VIPT to see the advantages of using WKB Approximation.