pith. sign in

arxiv: 1101.3347 · v1 · pith:MWGRLAYMnew · submitted 2011-01-17 · ✦ hep-lat · hep-ph· nucl-th

Extracting Scattering Phase-Shifts in Higher Partial-Waves from Lattice QCD Calculations

classification ✦ hep-lat hep-phnucl-th
keywords calculationslatticepartial-wavesphase-shiftsscatteringextractinghighermeson-meson
0
0 comments X
read the original abstract

L\"uscher's method is routinely used to determine meson-meson, meson-baryon and baryon-baryon s-wave scattering amplitudes below inelastic thresholds from Lattice QCD calculations - presently at unphysical light-quark masses. In this work we review the formalism and develop the requisite expressions to extract phase-shifts describing meson-meson scattering in partial-waves with angular-momentum l<=6 and l=9. The implications of the underlying cubic symmetry, and strategies for extracting the phase-shifts from Lattice QCD calculations, are presented, along with a discussion of the signal-to-noise problem that afflicts the higher partial-waves.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.