Semileptonic Decays of $B^{**}_{s}$ mesons into $D_{s1}$ and $D^{*}_{s2}$ in HQET

Details Semileptonic Decays of $B^{**}_{s}$ mesons into $D_{s1}$ and $D^{*}_{s2}$ in HQET Semileptonic Decays of $B^{**}_{s}$ mesons into $D_{s1}$ and $D^{*}_{s2}$ in HQET

2011-12-22

arxiv.org/abs/1112.5227v1

Commun. Theor. Phys. 57(2012), 85

Physics

High Energy Physics

High Energy Physics - Phenomenology

14pages, 6 figures

Scientific paper

In the framework of the heavy quark effective theory, the leading order Isgur-Wise functions relevant to semileptonic decays of the orbitally $P$-wave excited $B_{s}$ meson states $B^{**}_{s}$, including the newly found narrow $B_{s1}(5830)$ and $B^{*}_{s2}(5840)$ states, into the ($D_{s1}(2536)$, $D^{*}_{s2}(2573)$) doublet are calculated from QCD sum rules. With these universal form factors, the decay rates and branching ratios are also estimated.

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