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arXiv · 1101.1072

One-loop operator matching in the static heavy and domain-wall light quark system with O(a) improvement

Tomomi Ishikawa·Yasumichi Aoki·Jonathan M. Flynn·Taku Izubuchi·Oleg Loktik
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Abstract

We discuss perturbative O(g^2a) matching with static heavy quarks and domain-wall light quarks for lattice operators relevant to B-meson decays and $B^0$-$\bar{B}^0$ mixing. The chiral symmetry of the light domain-wall quarks does not prohibit operator mixing at O(a) for these operators. The O(a) corrections to physical quantities are non-negligible and must be included to obtain high-precision simulation results for CKM physics. We provide results using plaquette, Symanzik, Iwasaki and DBW2 gluon actions and applying APE, HYP1 and HYP2 link-smearing for the static quark action.

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Tomomi Ishikawa, Yasumichi Aoki, Jonathan M. Flynn, Taku Izubuchi, Oleg Loktik. 2011-01-05. One-loop operator matching in the static heavy and domain-wall light quark system with O(a) improvement. https://doi.org/10.1007/jhep05(2011)040

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