Determination of the $\Sigma$--$\Lambda$ mixing angle from QCD sum rules

Abstract

The $\Sigma$--$\Lambda$ mixing angle is calculated in framework of the QCD sum rules. We find that our prediction for the mixing angle is $(1.00\pm 0.15{)}^0$ which is in good agreement with the quark model prediction, and approximately two times larger than the recent lattice QCD calculations.

5 pages, no figures, LaTeX formatted

References in corpus (5)

• Big-Bang Nucleosynthesis
• QCD at Low Energies
• Towards NNLO Accuracy in the QCD Sum Rule for the Kaon Distribution Amplitude
• A lattice determination of Sigma - Lambda mixing
• Mixing Angle of Hadrons in QCD: A New View

Cited by in corpus (1)

• Estimates of the isospin-violating ${\Lambda }_b\to {\Sigma }^0\varphi ,{\Sigma }^{0}J/\psi$ decays and the $\Sigma -\Lambda$ mixing