Lattice analysis of semi-leptonic form factors

Tanmoy Bhattacharya; Rajan Gupta

doi:10.1016/0920-5632(96)00105-3

Lattice analysis of semi-leptonic form factors

High Energy Physics - Lattice 2007-05-23 v1

Authors: Tanmoy Bhattacharya , Rajan Gupta

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Abstract

We present preliminary results from simulations done on 170 $32^3 \times 64$ lattices at $\beta = 6.0$ using quenched Wilson fermions. This talk focuses on the $Q^2$ behavior of the form-factors, extrapolation in quark masses, dependence on renormalization scheme, and comparison with heavy-quark effective theory (HQET). Even though we cannot estimate errors due to quenching and discretization, our results are consistent with experimental results for $D$ decays. We present results for the Isgur-Wise function and estimate $\xi'(w=1) = 0.97(6)$ .

Keywords

semi-leptonic form factors Isgur-Wise function heavy quark effective theory lattice QCD quenched Wilson fermions D decays

Cite

@article{arxiv.hep-lat/9512007,
  title  = {Lattice analysis of semi-leptonic form factors},
  author = {Tanmoy Bhattacharya and Rajan Gupta},
  journal= {arXiv preprint arXiv:hep-lat/9512007},
  year   = {2007}
}

Comments

4 pages. Talk presented at Lattice 95. Latex. Modified "axis" source for figures also included

Lattice analysis of semi-leptonic form factors

Abstract

Keywords

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