Exclusive semileptonic heavy meson decays including lepton mass effects

T-odd correlations inB→K*l+Aliev1, Özpineci2, Savcı3 et al. 2002Phys. Rev. D401320View full textAdd to dashboardCite

“…where the summation is over the helicities λ V * = ±1, 0, s of the virtual intermediate vector boson, with the metric defined as η + = η 0 = −η s = 1 (see [17,18]). In Eq.…”

New measurements of the and branching ratios

“…The D + → K * 0 µ + ν width sets the scale of the A 1 (0) form factor describing these decays [2] and therefore tests Lattice Gauge and quark model calculations. Such tests of the overall form factor scale are particularly relevant to the determination of CKM matrix element ratios such as |V cd /V cs | 2 which relates to ( that is somewhat higher than previous measurements.…”

Search For New Physics at BABAR

“…Semileptonic transitions are the simplest process in B mesons decay. In the Standard Model (SM), the heavy b quark decays to either a c or an u quark and the virtual W boson [1][2][3]. Experimentally, semileptonic decays have the advantage of large branching fraction and are used to determine the weak couplings, the Cabibbo-Kobayashi-Maskawa (CKM) matrix elements, |V cb | and |V ub | [4].…”