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

2011/03/31 by H. Sundu, J. Y. Sungu, S. Sahin +2 · 1 citation
Physics and Astronomy · #hep-ph

paper · pdf · doi:10.1103/physrevd.83.114009

published as Phys.Rev.D83:114009,2011 · 20 Pages, 3 Figures and 8 Tables

arxiv created 2011/05/28 · arxiv updated 2011/06/20

Abstract

The strong coupling constants, g_D_sDK₀^*, g_B_sBK₀^*, g_D^∗_sD K, g_B^∗_sBK, g_D^∗_sD K₁ and g_B^∗_sBK₁, where K₀^*, K and K₁ 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 K₀^*(K)(K₁) mesons are off-shell are evaluated. In the case of K₁, which is either K₁(1270) or K₁(1400), the mixing between these two states are also taken into account. A comparison of the obtained result with the existing prediction on g_D^∗_sD K as the only coupling constant among the considered vertices, previously calculated in the literature, is also made.

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• Coupling constants of bottom (charmed) mesons with pion from three point QCD sum rules

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