B Semileptonic Decays at High Recoil Momentum

Details B Semileptonic Decays at High Recoil Momentum B Semileptonic Decays at High Recoil Momentum

2007-10-03

arxiv.org/abs/0710.0741v1

PoSLAT2007:378,2007

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, poster presented at the XXV International Symposium on Lattice Field Theory, 30 July - 4 August 2007, Regensburg, Ger

Scientific paper

We explore the possibility of studying $B\to\pi l\nu$ semileptonic decays at large recoil momentum. Our methods include the use of a random-wall source for the pion to reduce statistical errors, and different smearing functions are used for the B meson to improve the overlap with the ground state. We observe, in general, a factor of 3-4 improvement in the signal-to-noise ratio in correlation functions if random-wall propagators are used.

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