@article{713c9661aae64cc8893bbc2a0dd1a39e,
title = "Neutral B mixing from 2 + 1 flavor lattice QCD: The standard model and beyond",
abstract = "We report on the status of our lattice-QCD calculation of the hadronic contribution to B0 d and B0 s mixing, with 2 + 1 flavors of dynamical sea quarks. Preliminary results for hadronic mixing matrix elements are given for a basis of five four-quark, dimension-six, ∆B = 2 mixing operators that spans the space of all possible hadronic mixing contributions in the Standard Model and beyond. At the intermediate stage of analysis reported on in this work, our errors are competitive with published Standard Model matrix element results. For beyond the Standard Model matrix elements, this is the first unquenched calculation and the first new lattice-QCD calculation in ten years.",
author = "Bouchard, {C. M.} and Freeland, {E. D.} and C. Bernard and El-Khadra, {A. X.} and E. G{\'a}miz and Kronfeld, {A. S.} and J. Laiho and {Van de Water}, {R. S.}",
note = "Funding Information: Computations for this work were carried out with resources provided by the USQCD Collaboration, the Argonne Leadership Computing Facility, the National Energy Research Scientific Computing Center, and the Los Alamos National Laboratory, which are funded by the Office of Science of the U.S. Department of Energy; and with resources provided by the National Center for Supercomputer Applications, the National Institute for Computational Science, the Pittsburgh Supercomputer Center, the San Diego Supercomputer Center, and the Texas Advanced Computing Center, which are funded through the National Science Foundation Teragrid/XSEDE Program. This work was supported in part by the U.S. Department of Energy under Grants No. DE-FG02-91ER40677 (A.X.E., E.D.F., and C.M.B) and No. DE-FG02-91ER40628 (C.B.); and by the Science and Tech- Funding Information: nology Facilities Council and the Scottish Universities Physics Alliance (J.L.). C.M.B. was supported in part by a Fermilab Fellowship in Theoretical Physics. Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. This manuscript has been co-authored by employees of Brookhaven Science Associates, LLC, under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy. Publisher Copyright: {\textcopyright} Copyright owned by the author(s).; 29th International Symposium on Lattice Field Theory, Lattice 2011 ; Conference date: 10-07-2011 Through 16-07-2011",
year = "2011",
language = "English (US)",
volume = "139",
journal = "Proceedings of Science",
issn = "1824-8039",
publisher = "Sissa Medialab Srl",
}