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arXiv · 1411.6086

Update on a short-distance D^0-meson mixing calculation with $N_f=2+1$ flavors

C. C. Chang·C. Bernard·C. M. Bouchard·A. X. El-Khadra·E. D. Freeland·E. Gámiz·A. S. Kronfeld·J. Laiho·R. S. Van de Water
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Abstract

We present an update on our calculation of the short-distance $D^0$-meson mixing hadronic matrix elements. The analysis is performed on the MILC collaboration's $N_f=2+1$ asqtad configurations. We use asqtad light valence quarks and the Sheikoleslami-Wohlert action with the Fermilab interpretation for the valence charm quark. SU(3), partially quenched, rooted, staggered heavy-meson chiral perturbation theory is used to extrapolate to the chiral-continuum limit. Systematic errors arising from the chiral-continuum extrapolation, heavy-quark discretization, and quark-mass uncertainties are folded into the statistical errors from the chiral-continuum fits with methods of Bayesian inference. A preliminary error budget for all five operators is presented.

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C. C. Chang, C. Bernard, C. M. Bouchard, A. X. El-Khadra, E. D. Freeland, E. Gámiz, A. S. Kronfeld, J. Laiho, R. S. Van de Water. 2014-12-13. Update on a short-distance D^0-meson mixing calculation with $N_f=2+1$ flavors. https://arxiv.org/abs/1411.6086

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