Magnetic Moments of Negative Parity Baryons from Effective Hamiltonian Approach to QCD

Abstract

Magnetic moments of $S_{11}(1535)$ and $S_{11}(1650)$ baryons are studied in the framework of the relativistic three-quark Hamiltonian derived in the Field Correlation Method. The baryon magnetic moments are expressed via the average current quark energies which are defined by the fundamental QCD parameters: the string tension $\sigma$, the quark masses, and the strong coupling constant ${\alpha }_s$. For the $J^P=1/2^{+}$ baryon octet the approach was shown to give a good first approximation to the experimental moments. Resulting magnetic moments for the $J^P=1/2^{-}$ nucleons are compared both to model calculations and to those from lattice QCD.

published version

References in corpus (3)

• Quark-Antiquark System in Ultra-Intense Magnetic Field
• Accuracy of Auxiliary Field Approach for Baryons
• Baryons in the Field Correlator Method: Effects of the Running Strong Coupling

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• Structure of the Nucleon and its Excitations
• Electromagnetic and Axial Current Form Factors and Spectroscopy of Three-Flavor Holographic Baryons
• Strong coupling constant of negative parity octet baryons with light pseudoscalar mesons in light cone QCD sum rules