The University of Southampton
University of Southampton Institutional Repository

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

B - anti-B mixing with domain wall fermions in the static approximation
B - anti-B mixing with domain wall fermions in the static approximation
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.
Scuola Internaziole Superiore di Studi Avanzati
Albertus, C.
2578dbb1-80bd-4f6d-a955-1e80578d79da
Aoki, Y.
59681162-da15-44bc-9543-5dabe0b3f9bd
Boyle, P.A.
deafc6c3-3d18-4199-84f5-6f20cd03e311
Christ, N.H.
bca5b070-bac5-4160-b12c-826a608a12b4
Del Debbio, L.
eb1f4721-c63c-4b6b-8035-df1bd82e8baf
Dumitrescu, T.T.
99a8aef0-d245-4957-89c5-adc4f3b05ca7
Flynn, J.M.
d8e90963-ba56-415c-bbd4-496b7d91d343
Izubuchi, T.
4ee5b26a-e913-4a6b-8a2f-80159b3219b2
Loktik, O.
49b1eeb6-3f91-4c42-9070-01f5d434f004
Sachrajda, C.T.
0ed6568b-f52f-4314-8677-4aeeb925d6f7
Soni, A.
7a4196ff-0f6b-429e-af54-d1036e9c433b
Wennekers, J.
301214ab-4958-40c3-a6a3-6daa8066d466
Bali, Gunnar
Braun, Vladimir
Gattringer, Christof
Göckeler, Meinulf
Schäfer, Andreas
Weisz, Peter
Wettig, Tilo
Albertus, C.
2578dbb1-80bd-4f6d-a955-1e80578d79da
Aoki, Y.
59681162-da15-44bc-9543-5dabe0b3f9bd
Boyle, P.A.
deafc6c3-3d18-4199-84f5-6f20cd03e311
Christ, N.H.
bca5b070-bac5-4160-b12c-826a608a12b4
Del Debbio, L.
eb1f4721-c63c-4b6b-8035-df1bd82e8baf
Dumitrescu, T.T.
99a8aef0-d245-4957-89c5-adc4f3b05ca7
Flynn, J.M.
d8e90963-ba56-415c-bbd4-496b7d91d343
Izubuchi, T.
4ee5b26a-e913-4a6b-8a2f-80159b3219b2
Loktik, O.
49b1eeb6-3f91-4c42-9070-01f5d434f004
Sachrajda, C.T.
0ed6568b-f52f-4314-8677-4aeeb925d6f7
Soni, A.
7a4196ff-0f6b-429e-af54-d1036e9c433b
Wennekers, J.
301214ab-4958-40c3-a6a3-6daa8066d466
Bali, Gunnar
Braun, Vladimir
Gattringer, Christof
Göckeler, Meinulf
Schäfer, Andreas
Weisz, Peter
Wettig, Tilo

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. Scuola Internaziole Superiore di Studi Avanzati. 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.

This record has no associated files available for download.

More information

Published date: 2007
Venue - Dates: Lattice 2007, the XXV International Symposium on Lattice Field Theory, Regensburg, Germany, 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: 07 Mar 2024 02:34

Export record

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

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×