QCD Sum Rule Analysis of Semileptonic $B_{s1}$, $B_{s2}^{\ast }$, $B_{s0}^{\ast }$, and $B_{s1}^{\prime }$ Decays in HQET

Abstract

We present an analysis of semileptonic decays of orbitally, $P$-wave excited $B_s$ meson states $B_s^{\ast \ast }$, including the newly found narrow $B_{s1}(5830)$ and $B_{s2}^{\ast }(5840)$ states, into low lying $D_s$ mesons ($D_s(1968)$, $D_s^{\ast }(2112)$, $D_{sJ}(2317)$, $D_{sJ}(2460)$) 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.

18 pages, 8 eps figures, revised version accepted for publication in Phys. Rev. D

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Cited by in corpus (6)

• A review of the open charm and open bottom systems
• Towards establishing an abundant $B$ and $B_s$ spectrum up to the second orbital excitations
• The analysis of the excited bottom and bottom strange states $B_1(5721)$, $B_2^{\ast }(5747)$, $B_{s1}(5830)$, $B_{s2}^{\ast }(5840)$, $B_J(5840)$ and $B_J(5970)$ in B meson family
• $D_{sJ}(2860)$ From The Semileptonic Decays Of $B_s$ Mesons
• Semileptonic Decays of $B_s^{\ast \ast }$ mesons into $D_{s1}$ and $D_{s2}^{\ast }$ in HQET
• Semileptonic $B_s\to D_{s2}^{\ast }(2573)\ell {\bar{\nu }}_{\ell }$ transition in QCD