Download or read book Semileptonic Decays of B Mesons Into Excited Charm Mesons written by and published by . This book was released on 1992 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: We use the heavy quark effective theory to investigate the form factors that describe the semileptonic decays of a B meson into excited daughter mesons. For an excited daughter meson with charm, a single form factor is needed at leading order, while five form factors and two dimensionful constants are needed to order 1/m(sub)c in the heavy quark expansion. For non-charmed final states, a total of four form factors are needed at leading order. For the process B ->D^(*)Xlv, four form factors are also needed at leading order.