Semileptonic B decays to excited charmed mesons

Abstract

Exclusive semileptonic B decays into excited charmed mesons are investigated at order ${\Lambda }_{QCD}/m_Q$ in the heavy quark effective theory. Differential decay rates for each helicity state of the four lightest excited $D$ mesons ($D_1$, $D_2^{\ast }$, $D_0^{\ast }$, and $D_1^{\ast }$) are examined. At zero recoil, ${\Lambda }_{QCD}/m_Q$ corrections to the matrix elements of the weak currents can be written in terms of the leading Isgur-Wise functions for the corresponding transition and meson mass splittings. A model independent prediction is found for the slope parameter of the decay rate into helicity zero $D_1$ at zero recoil. The differential decay rates are predicted, including ${\Lambda }_{QCD}/m_Q$ corrections with some model dependence away from zero recoil and including order ${\alpha }_s$ corrections. Ratios of various exclusive branching ratios are computed. Matrix elements of the weak currents between $B$ mesons and other excited charmed mesons are discussed at zero recoil to order ${\Lambda }_{QCD}/m_Q$. These amplitudes vanish at leading order, and can be written at order ${\Lambda }_{QCD}/m_Q$ in terms of local matrix elements. Applications to $B$ decay sum rules and factorization are presented.

39 pages revtex including 10 figures, uses epsf. Substantial improvements throughout the paper

References in corpus (2)

• Quantitative Predictions for $B$ semileptonic decays into $D,D^{\ast }$ and the orbitally excited $D^{\ast \ast }$ in quark models à la Bakamjian-Thomas
• Model independent results for $B\to D_1(2420)\ell \bar{\nu }$ and $B\to D_2^{\ast }(2460)\ell \bar{\nu }$ at order ${\Lambda }_{QCD}/m_{c,b}$

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