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B ??l? form factors in lattice QCD

Bowler, K.C., Flynn, J.M., Gill, J.F. and Maynard, C.M. UKQCD Collaboration (2004) B ??l? form factors in lattice QCD Journal of High Energy Physics, 5, (35), pp. 1-17. (doi:10.1088/1126-6708/2004/05/035).

Record type: Article


We present results from quenched lattice QCD for the form factors for the decay B??l?. The calculations are performed using a nonperturbatively improved action and operators at two values of the lattice spacing. The bottom quark mass is reached by extrapolation from simulations performed with heavy quark masses around the charm mass. Our primary result is for the partially integrated decay rate ?PI over the range 12.7 GeV2<q2<18.2 GeV2: ?PI = 4.9+12-10+ 0-14 × 1012 s-1 |Vub|2.

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Published date: May 2004
Keywords: quark masses and SM parameters, weak decays, B-Physics, lattice QCD
Organisations: Physics & Astronomy, High Energy Physics


Local EPrints ID: 11219
PURE UUID: 73213ecc-6d1b-4ed4-a954-73acde7be4d0
ORCID for J.M. Flynn: ORCID iD

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Date deposited: 19 Aug 2008
Last modified: 17 Jul 2017 17:04

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Author: K.C. Bowler
Author: J.M. Flynn ORCID iD
Author: J.F. Gill
Author: C.M. Maynard

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