Pseudoscalar--meson decuplet--baryon coupling constants in light cone QCD

Abstract

Taking into account the $SU(3{)}_f$ breaking effects, the strong coupling constants of the $\pi$, $K$ and $\eta$ mesons with decuplet baryons are calculated within light cone QCD sum rules method. It is shown that all coupling constants, even in the case of $SU(3{)}_f$ breaking, are described in terms of only one universal function. It is shown that for ${\Xi }^{\ast 0}\to {\Xi }^{\ast 0}\eta$ transition violation of $SU(3{)}_f$ symmetry is very large and for other channels when $SU(3{)}_f$ symmetry is violated, its maximum value constitutes $10$.

17 Pages, one Figure and 3 Tables

References in corpus (4)

• The effective continuum threshold in dispersive sum rules
• Towards NNLO Accuracy in the QCD Sum Rule for the Kaon Distribution Amplitude
• Meson-octet-baryon couplings using light cone QCD sum rules
• Vector meson-baryon strong coupling contants in light cone QCD sum rules

Cited by in corpus (11)

• Light Cone Sum Rules for the pi0-gamma*-gamma Form Factor Revisited
• Analysis of the vertexes ${\Xi }_Q^{\ast }{\Xi }_Q^{\prime }V$, ${\Sigma }_Q^{\ast }{\Sigma }_{Q}V$ and radiative decays ${\Xi }_Q^{\ast }\to {\Xi }_Q^{\prime }\gamma$, ${\Sigma }_Q^{\ast }\to {\Sigma }_Q\gamma$
• Strong coupling constants of light pseudoscalar mesons with heavy baryons in QCD
• Analysis of the vertexes ${\Omega }_Q^{\ast }{\Omega }_Q\varphi$ and radiative decays ${\Omega }_Q^{\ast }\to {\Omega }_Q\gamma$
• Spin--3/2 to spin--1/2 heavy baryons and pseudoscalar mesons transitions in QCD
• Heavy baryon--light vector meson couplings in QCD
• Strong transitions of decuplet to octet baryons and pseudoscalar mesons
• Analysis of heavy spin--3/2 baryon--heavy spin--1/2 baryon--light vector meson vertices in QCD
• Strong coupling constants of heavy spin--3/2 baryons with light pseudoscalar mesons
• Light vector meson octet-decuplet baryon vertices in QCD
• Strong Coupling Constants of Decuplet Baryons with Vector Mesons