F_B from moving B mesons

Collins, S., Cowan, G., Davies, C.T.H. , Hein, J., Lepage, G.P., Morningstar, C. and Shigemitsu, J. (2002) F_B from moving B mesons. Nuclear Physics, Section B, Proceedings Supplements, 107, 406 -408. (doi: 10.1016/S0920-5632(01)01729-7)

Abstract

We show results for the B meson decay constant calculated both for B mesons at rest and those with non-zero momentum and using both the temporal and spatial components of the axial vector current. It is an important check of lattice systematic errors that all these determinations of f(B) should agree. We also describe how well different smearings for the B meson work at non-zero momentum - the optimal smearing has a narrow smearing on the b quark.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Shigemitsu, Prof Junko and Davies, Professor Christine
• Authors: Collins, S., Cowan, G., Davies, C.T.H., Hein, J., Lepage, G.P., Morningstar, C., and Shigemitsu, J.
• Subjects: Q Science > QC Physics
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Nuclear Physics, Section B, Proceedings Supplements
• Publisher: Elsevier BV
• ISSN: 0920-5632
• ISSN (Online): 1873-3832