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

• Main Authors: Narodetskii, I. M, Trusov, M. A
• Format: Journal Article
• Language: English
• Published: 12-03-2014
• Subjects: Physics - High Energy Physics - Phenomenology
• DOI: 10.48550/arxiv.1311.2407

JETP Letters, 99, pp. 57-62 (2014) 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.