Studying the $\rho$ resonance parameters with staggered fermions
High Energy Physics - Lattice
2016-08-29 v1
Abstract
We deliver a lattice study of resonance parameters with p-wave scattering phases, which are extracted by finite-size methods at one center-of-mass frame and four moving frames for six MILC lattice ensembles with pion masses ranging from to MeV. The effective range formula is applied to describe the scattering phases as a function of the energy covering the resonance region, this allows us to extract resonance parameters and to investigate the quark-mass dependence. Lattice studies with three flavors of the Asqtad-improved staggered fermions enable us to use the moving-wall source technique on large lattice spatial dimensions () and small light quarks. Numerical computations are carried out at two lattice spacings, and fm.
Keywords
Cite
@article{arxiv.1608.07478,
title = {Studying the $\rho$ resonance parameters with staggered fermions},
author = {Ziwen Fu and Lingyun Wang},
journal= {arXiv preprint arXiv:1608.07478},
year = {2016}
}