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).


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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.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1088/1126-6708/2004/05/035
Keywords: quark masses and SM parameters, weak decays, B-Physics, lattice QCD
ePrint ID: 11219
Date :
Date Event
May 2004Published
Date Deposited: 19 Aug 2008
Last Modified: 16 Apr 2017 23:55
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/11219

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