Octet, decuplet and antidecuplet magnetic moments in the chiral quark soliton model revisited

Abstract

We reanalyse the magnetic moments of the baryon octet, decuplet, and antidecuplet within the framework of the chiral quark-soliton model, with SU(3) symmetry breaking taken into account. We consider the contributions of the mixing of higher representations to the magnetic moment operator arising from the SU(3) symmetry breaking. Dynamical parameters of the model are fixed by experimental data for the magnetic moments of the baryon octet and from the masses of the octet, decuplet and of ${\Theta }^{+}$. The magnetic moment of ${\Theta }^{+}$ depends rather strongly on the pion-nucleon sigma term and reads $-1.19n.m.$ to $-0.33n.m.$ for ${\Sigma }_{\pi N}=45$ and 75 MeV respectively. The recently reported mass of ${\Xi }_{\overline{10}}^{--}(1862)$ is compatible with ${\Sigma }_{\pi N}=73$ MeV. As a byproduct the strange magnetic moment of the nucleon is obtained with a value of ${\mu }_N^{(s)}=+0.39$ n.m.

arXiv commentRevTeX is used. 12 pages, 3 figures, final version for publication in Phys. Rev. D

References in corpus (34)

• Evidence for Narrow S=+1 Baryon Resonance in Photo-production from Neutron
• Diquarks and Exotic Spectroscopy
• Exotic Anti-Decuplet of Baryons: Prediction from Chiral Solitons
• Observation of an Exotic $S=+1$ Baryon in Exclusive Photoproduction from the Deuteron
• Observation of a baryon resonance with positive strangeness in K+ collisions with Xe nuclei
• Observation of an Exotic S = -2, Q = -2 Baryon Resonance in Proton-Proton Collisions at the CERN SPS
• Observation of an Exotic Baryon with S=+1 in Photoproduction from the Proton
• Evidence for a narrow |S|=1 baryon state at a mass of 1528 MeV in quasi-real photoproduction
• A Diquark-Triquark Model for the KN Pentaquark
• Evidence for a narrow baryonic state decaying to K0s-p and K0s-pbar in deep inelastic scattering at HERA
• Evidence for a narrow resonance at 1530 MeV/c2 in the K0 p - system of the reaction pp --> Sigma+ K0 p from the COSY-TOF experiment
• Evidence for formation of a narrow pKshort resonance with mass near 1533 MeV in neutrino interactions
• The reaction $\gamma p\to {\pi }^{\circ }{\gamma }^{\prime }p$ and the magnetic dipole moment of the ${\Delta }^{+}(1232)$ resonance
• Chiral-Soliton Predictions for Exotic Baryons
• A schematic model for pentaquarks based on diquarks
• Z^* Resonances: Phenomenology and Models
• Magnetic moments of the SU(3) decuplet baryons in the chiral quark-soliton model
• Photoproduction of Theta baryon from the neutron
• Exotic Theta^+ baryon production induced by a photon and a pion
• Pentaquarks
• Symmetry conserving approach to the quantization of the non-topological SU(3) soliton
• Pentaquark Magnetic Moments In Different Models
• Updated analysis of meson-nucleon sigma terms in the perturbative chiral quark model
• Study the exotic ${\Theta }^{+}$ with polarized photon beams
• Extraction of the pion-nucleon sigma-term from the spectrum of exotic baryons
• The Constituent Quark Limit and the Skyrmion Limit of the Chiral Quark Soliton Model
• Magnetic Moment of The ${\Theta }^{+}$ Pentaquark State
• Magnetic moments of antidecuplet pentaquarks
• Theta^+ baryon production in KN and NN reactions
• Flavor structure of the octet magnetic moments
• Properties of baryon anti-decuplet
• A Diquark Chiral Effective Theory and Exotic Baryons
• Program for Generating Tables of SU(3) Coupling Coefficients
• Investigating the parity of the exotic Theta^+ baryon from the kaon photoproduction

Cited by in corpus (21)

• Magnetic Moments of $J^P=3/2^{+}$ Heavy Baryons Using Effective Mass and Screened Charge Scheme
• Electromagnetic form factors of the Delta with D-waves
• Hyperon Semileptonic decay constants with flavor SU(3) symmetry breaking
• Radiative pi0 photoproduction on protons in the Delta+(1232) region
• Exotic and nonexotic magnetic transitions in the context of the SELEX and GRAAL experiments
• Electromagnetic properties of the Delta(1232) and decuplet baryons in the self-consistent SU(3) chiral quark-soliton model
• Magnetic moments of $J^P={\frac{3}{2}}^{+}$ decuplet baryons using effective quark masses in chiral constituent quark model
• Sum rules for baryon decuplet magnetic moments
• Pentaquarks: Review on Models and Solitonic Calculations of Antidecuplet Magnetic Moments
• Magnetic dipole moment of the $\Delta (1232)$ in chiral perturbation theory
• Vector transition form factors of the $N{K}^{\ast }\to {\Theta }^{+}$ and $N{\bar{K}}^{\ast }\to {\Sigma }_{\overline{10}}^{\ast -}$ in the SU(3) chiral quark-soliton model
• Transition magnetic moments of $J^P={\frac{3}{2}}^{+}$ decuplet to $J^P={\frac{1}{2}}^{+}$ octet baryons in the chiral constituent quark model
• Quark spin content of the proton, hyperon semileptonic decays, and the decay width of the ${\Theta }^{+}$ pentaquark
• Charged pion photoproduction with the Delta(1232) baryon beyond the resonance region
• Magnetic moments of JP = 3/2+ decuplet baryons using statistical model
• Magnetic moment of the pentaquark ${\Theta }^{+}(1540)$ with light-cone QCD sum rules
• Magnetic moment of the pentaquark ${\Theta }^{+}(1540)$ with QCD sum rules
• Properties of JP = 1/2+ baryon octets at low energy
• Electric properties of the baryon anti-decuplet in the SU(3) chiral quark-soliton model
• Photoproduction of Theta^+(1540,1/2^+) reexamined with new theoretical information
• Magnetic moments of exotic pentaquark baryons