Tuning the hopping parameter in the Oktay-Kronfeld action for charm and   bottom quarks on a MILC HISQ ensemble
  The first step in the calculation of semi-leptonic form factors in the decay of heavy mesons is the tuning of the hopping parameter $\kappa$ for the charm and bottom quark masses. Results for the Oktay-Kronfeld (OK) action are presented for one $N_f=2+1+1$ HISQ ensemble generated by the MILC collaboration at $a\approx 0.12\,\mathrm{fm}$ and $M_\pi\approx 310$ MeV. Estimates of hyperfine splitting of heavy-light and heavy-heavy mesons are presented and the inconsistency parameter is evaluated. 
Hwancheol Jeong, Weonjong Lee, Jaehoon Leem, Sungwoo Park, Tanmoy   Bhattacharya, Rajan Gupta, Yong-Chull Jang (LANL-SWME Co...
hep-lat