D_s spectrum and leptonic decays with Fermilab heavy quarks and improved staggered light quarks

TL;DR

This paper reports on lattice QCD calculations of the D_s meson spectrum and decay constants using improved staggered light quarks and Fermilab heavy quarks, comparing results with recent experimental discoveries.

Contribution

First unquenched lattice QCD study using 2+1 dynamical quarks with improved actions to compute D_s spectrum and decay constants, including comparison with new experimental states.

Findings

Preliminary D_s spectrum and decay constants obtained.

Comparison with newly observed 0+ and 1+ states in D_s system.

Results show consistency with experimental findings.

Abstract

We present preliminary results for the D_s meson spectrum and decay constants in unquenched lattice QCD. Simulations are carried out with 2+1 dynamical quarks using gauge configurations generated by the MILC collaboration. We use the ``asqtad'' a^2 improved staggered action for the light quarks, and the clover heavy quark action with the Fermilab interpretation. We compare our spectrum results with the newly discovered 0+ and 1+ states in the D_s system.