Chiral Extrapolation of Lattice Data for Heavy Meson Hyperfine Splittings

Details Chiral Extrapolation of Lattice Data for Heavy Meson Hyperfine Splittings Chiral Extrapolation of Lattice Data for Heavy Meson Hyperfine Splittings

2005-11-07

arxiv.org/abs/hep-lat/0511020v2

Few Body Syst.38:17-29,2006

Physics

High Energy Physics

High Energy Physics - Lattice

14 pages, 4 figures, typos corrected, presentation clarified

Scientific paper

10.1007/s00601-005-0121-3

We investigate the chiral extrapolation of the lattice data for the light-heavy meson hyperfine splittings D^*-D and B^*-B to the physical region for the light quark mass. The chiral loop corrections providing non-analytic behavior in m_\pi are consistent with chiral perturbation theory for heavy mesons. Since chiral loop corrections tend to decrease the already too low splittings obtained from linear extrapolation, we investigate two models to guide the form of the analytic background behavior: the constituent quark potential model, and the covariant model of QCD based on the ladder-rainbow truncation of the Dyson-Schwinger equations. The extrapolated hyperfine splittings remain clearly below the experimental values even allowing for the model dependence in the description of the analytic background.

Affiliated with

Also associated with

No associations

Rating

Chiral Extrapolation of Lattice Data for Heavy Meson Hyperfine Splittings does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Chiral Extrapolation of Lattice Data for Heavy Meson Hyperfine Splittings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chiral Extrapolation of Lattice Data for Heavy Meson Hyperfine Splittings will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-336260