$B_K$ using HYP-smeared staggered fermions in $N_f=2+1$ unquenched QCD

Taegil Bae, Yong-Chull Jang, Chulwoo Jung +6

We present results for kaon mixing parameter $B_K$ calculated using HYP-smeared improved staggered fermions on the MILC asqtad lattices. We use three lattice spacings ($a\approx 0.…