Structure of the(0+,1+)mesonsBs0andBs1, and the strong coupling constantgBs0BKandgBs1B*K

Abstract

In this article, we take the point of view that the bottomed (0{sup +},1{sup +}) mesons B{sub s0} and B{sub s1} are the conventional bs meson and calculate the strong coupling constants g{sub B{sub s0}}{sub BK} and g{sub B{sub s1}}{sub B*K} with the light-cone QCD sum rules. The numerical values of strong coupling constants g{sub B{sub s1}}{sub B*K} and g{sub B{sub s0}}{sub BK} are very large and support the hadronic dressing mechanism. Just like the scalar mesons f{sub 0}(980), a{sub 0}(980), D{sub s0} and axial-vector meson D{sub s1}, the (0{sup +},1{sup +}) bottomed mesons B{sub s0} and B{sub s1} may have small bs kernels of the typical bs meson size. The strong couplings to the hadronic channels (or the virtual mesons loops) may result in smaller masses than the conventional bs mesons in the potential quark models and enrich the pure bs states with other components.