出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We explore the possibility of studying B!pln 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.
