Strong coupling constants of bottom and charmed mesons with scalar, pseudoscalar, and axial vector kaons


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Sundu H. , Sungu J. Y. , ŞAHİN S. , YİNELEK N., Azizi K.

PHYSICAL REVIEW D, cilt.83, 2011 (SCI İndekslerine Giren Dergi) identifier identifier

Özet

The strong coupling constants, gD(s)DK(0)*, gB(s)BK(0)*, gD(s)*DK, gB(s)*BK, gD(s)*DK1 and gB(s)*BK1, where K-0*, K and K-1 are scalar, pseudoscalar, and axial-vector kaon mesons, respectively, are calculated in the framework of three-point QCD sum rules. In particular, the correlation functions of the considered vertices when both B(D) and K-0*(K)(K-1) mesons are off shell are evaluated. In the case of K-1, which is either K-1(1270) or K-1(1400), the mixing between these two states are also taken into account. A comparison of the obtained result with the existing prediction on g(Ds)*(DK) as the only coupling constant among the considered vertices, previously calculated in the literature, is also made.