# Isgur-Wise function and a new approach to Potential Model

Source: [Isgur-Wise function and a new approach to Potential Model](<https://www.sota2.com/research/paper/68fa35001e209131ce89d9ba>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T21:00:02.496Z

Authors: Tapashi Das, D. K. Choudhury, K. K. Pathak

Published: 2016-05-28T14:21:59.000Z

## Abstract

Considering the Cornell potential $V(r)=-\\frac{4\\alpha\_s}{3r}+br+c$, we have revisited the Dalgarno's method of perturbation by incorporating two scales $r^{short}$ and $r^{long}$ as integration limit so that the perturbative procedure can be improved in a potential model. With the improved version of the wave function the ground state masses of the heavy-light mesons $ D, D\_s, B, B\_s$ and $B\_c $ are computed. The slopes and curvatures of the form factors of semi-leptonic decays of heavy-light mesons in both HQET limit and finite mass limit are calculated and compared with the available data.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1605.08896>)

[PDF](<https://arxiv.org/pdf/1605.08896.pdf>)