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arXiv · 0710.0741

B Semileptonic Decays at High Recoil Momentum

C. T. H. Davies·E. Follana·G. P. Lepage·J. Shigemitsu·K. Y. Wong
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Abstract

We explore the possibility of studying $B\toπlν$ 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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C. T. H. Davies, E. Follana, G. P. Lepage, J. Shigemitsu, K. Y. Wong. 2007-10-03. B Semileptonic Decays at High Recoil Momentum. https://arxiv.org/abs/0710.0741

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