Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-09-06
Physics
High Energy Physics
High Energy Physics - Phenomenology
18 pages, 8 eps figures, revised version accepted for publication in Phys. Rev. D
Scientific paper
We present an analysis of semileptonic decays of orbitally, $P$-wave excited $B_{s}$ meson states $B^{**}_{s}$, including the newly found narrow $B_{s1}(5830)$ and $B^{*}_{s2}(5840)$ states, into low lying $D_{s}$ mesons ($D_{s}(1968)$, $D^{*}_{s}(2112)$, $D_{sJ}(2317)$, $D_{sJ}(2460)$) within the framework of heavy quark effective theory. The relevant universal form factors are estimated using QCD sum rules at the leading-order of the heavy quark expansion. The decay widths are predicted and the branching ratios are estimated.
Gan Long-Fei
Huang Ming-Qiu
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