Reanalysis of the (0^+,1^+) states B_{s0} and B_{s1} with QCD sum rules

Abstract

In this article, we calculate the masses and decay constants of the $P$-wave strange-bottomed mesons $B_{s0}$ and $B_{s1}$ with the QCD sum rules, and observe that the central values of the masses of the $B_{s0}$ and $B_{s1}$ are smaller than the corresponding $BK$ and $B^{\ast }K$ thresholds respectively, the strong decays $B_{s0}\to BK$ and $B_{s1}\to B^{\ast }K$ are kinematically forbidden. They can decay through the isospin violation precesses $B_{s0}\to B_s\eta \to B_s{\pi }^0$ and $B_{s1}\to B_s^{\ast }\eta \to B_s^{\ast }{\pi }^0$. The bottomed mesons $B_{s0}$ and $B_{s1}$, just like their charmed cousins $D_{s0}(2317)$ and $D_{s1}(2460)$, maybe very narrow.

9 pages, 5 figures, 4-version

References in corpus (5)

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• D_{sJ}(2860) as the first radial excitation of the D_{s0}^*(2317)
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• B meson spectroscopy
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Cited by in corpus (6)

• Light meson mass dependence of the positive parity heavy-strange mesons
• Strong and radiative decays of the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$
• Near Mass Degeneracy in the Scalar Meson Sector: Implications for $B_{(s)0}^{\ast }$ and $B_{(s)1}^{\prime }$ Mesons
• Masses and decay constants of the heavy tensor mesons with QCD sum rules
• Radiative decays of the $(0^{+},1^{+})$ strange-bottom mesons
• Strong coupling constants of charmed and bottom mesons with light vector mesons in QCD sum rules