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

Abstract

In this article, the three point QCD sum rules is used to compute the strong coupling constants of vertices containing the strange bottomed ( charmed ) mesons with pion. The coupling constants are calculated, when both the bottom ( charm ) and pion states are off-shell. A comparison of the obtained results of coupling constants with the existing predictions is also made. Key words: strong coupling constant, meson, QCD sum rules, bottom, charm.

17pages, Latex. arXiv admin note: text overlap with arXiv:1104.2864, arXiv:1103.0943, arXiv:hep-ph/0304193 by other authors

References in corpus (5)

• Exotic $QQ\bar{q}\bar{q}$, $QQ\bar{q}\bar{s}$ and $QQ\bar{s}\bar{s}$ states
• ρD^*D^* vertex from QCD sum rules
• $D^{\ast }{D}_{s}K$ and $D_s^{\ast }DK$ vertices in a QCD Sum Rule approach
• The $\omega DD$ vertex in a Sum Rule approach
• Isospin violating decay of $\psi (3770)\to J/\psi +{\pi }^0$

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• Analysis of $D_s^{\ast }{D}^{\ast }{K}^{\ast }$ and $D_{s1}{D}_1{K}^{\ast }$ vertices in three-point sum rules
• $x{F}_3(x,Q^2)$ Structure Function and Gross-Llewellyn Smith Sum Rule with Nuclear Effect and Higher Twist Correction
• Strong coupling constants of charmed and bottom mesons with light vector mesons in QCD sum rules