gD(s)*DK*(892) and gB(s)*BK*(892) coupling constants in QCD sum rules


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Azizi K., Sundu H.

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, cilt.38, 2011 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 38 Konu: 4
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1088/0954-3899/38/4/045005
  • Dergi Adı: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS

Özet

The coupling constants gD*(s) DK*(892) and gB*sBK*(892) are calculated in the framework of three-point QCD sum rules. The correlation functions responsible for these coupling constants are evaluated considering contributions of both D(B) and K*(892) mesons as off-shell states, but in the absence of radiative corrections. The results gD*sDK*(892) = (3.74 +/- 1.38) GeV-1 and gB*sBK*(892) = (3.24 +/- 1.08) GeV-1 are obtained for the considered strong coupling constants.