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B - anti-B mixing with domain wall fermions in the static approximation

Albertus, C., Aoki, Y., Boyle, P.A., Christ, N.H., Del Debbio, L., Dumitrescu, T.T., Flynn, J.M., Izubuchi, T., Loktik, O., Sachrajda, C.T., Soni, A. and Wennekers, J., (2007) B - anti-B mixing with domain wall fermions in the static approximation Bali, Gunnar, Braun, Vladimir, Gattringer, Christof, Göckeler, Meinulf, Schäfer, Andreas, Weisz, Peter and Wettig, Tilo (eds.) In Proceedings of Lattice 2007, The XXV International Symposium on Lattice Field Theory. International School for Advanced Studies. 7 pp.

Record type: Conference or Workshop Item (Paper)

Abstract

We present preliminary numerical results for the pseudoscalar decay constants fB and fBs and
the DB = 2 mixing matrix elements in the B0 and B0s
systems. We use the static approximation
for the b-quark with two variants of gauge field smearing (APE and HYP2) in the static lattice
action. The light quarks are 2+1 dynamical flavours of Domain Wall Fermions at fixed lattice
spacing of 0.12fm with the lightest pion mass at 400MeV. At this lattice spacing we have found
large differences in our observables computed with the different smearings. The matching to the
renormalised continuum theory is done at one loop in perturbation theory

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More information

Published date: 2007
Venue - Dates: Lattice 2007, the XXV International Symposium on Lattice Field Theory, 2007-07-30 - 2007-08-04

Identifiers

Local EPrints ID: 56959
URI: http://eprints.soton.ac.uk/id/eprint/56959
PURE UUID: 09473fda-2ab4-4e1c-9686-c9ca76ce0ecb
ORCID for J.M. Flynn: ORCID iD orcid.org/0000-0002-6280-1677

Catalogue record

Date deposited: 20 Aug 2008
Last modified: 17 Jul 2017 14:29

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Contributors

Author: C. Albertus
Author: Y. Aoki
Author: P.A. Boyle
Author: N.H. Christ
Author: L. Del Debbio
Author: T.T. Dumitrescu
Author: J.M. Flynn ORCID iD
Author: T. Izubuchi
Author: O. Loktik
Author: C.T. Sachrajda
Author: A. Soni
Author: J. Wennekers
Editor: Gunnar Bali
Editor: Vladimir Braun
Editor: Christof Gattringer
Editor: Meinulf Göckeler
Editor: Andreas Schäfer
Editor: Peter Weisz
Editor: Tilo Wettig

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