Studying $\kappa$ meson with a MILC fine lattice

Abstract

Using the lattice simulations in the Asqtad-improved staggered fermion formulation we compute the point-to-point $\kappa$ correlators, which are analyzed by the rooted staggered chiral perturbation theory (rS$\chi$PT). After chiral extrapolation, we secure the physical $\kappa$ mass with $835\pm 93$ MeV, which is in agreement with the BES experimental results. The computations are performed using a MILC 2+1 flavor fine gauge configuration at a lattice spacing of $a\approx 0.09$ fm.

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Cited by in corpus (3)

• $I=1/2$ $S$-wave and $P$-wave $K\pi$ scattering and the $\kappa$ and $K^{\ast }$ resonances from lattice QCD
• I=1/2 low-lying mesons in lattice QCD
• Bubble contributions to scalar correlators with mixed actions