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arXiv · hep-lat/0310058

B_K from Two-flavor Dynamical Domain Wall Fermions

Taku Izubuchi
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Abstract

We report preliminary results from an ongoing calculation of $B_K$ for $N_f=2$ dynamical QCD with domain wall fermions. Simulations have been done with three dynamical quark masses on $16^3 \times 32$ volumes with $L_s = 12$, where the lattice spacing is $a^{-1} = 1.81(6)$ GeV. Using measurements on $\sim 70$ lattices for each dynamical mass and extrapolating $\mdyn=\mval$ to the kaon point, we find $B_K^{\rm \bar{MS}}(μ=2{\rm GeV}) = 0.503(20)$.

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Taku Izubuchi. 2003-10-27. B_K from Two-flavor Dynamical Domain Wall Fermions. https://doi.org/10.1016/s0920-5632(03)02550-7

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