Kaon photoproduction on the nucleon: Contributions of kaon-hyperon final states to the magnetic moment of the nucleon

Abstract

By using the Gerasimov-Drell-Hearn (GDH) sum rule and an isobaric model of kaon photoproduction, we calculate contributions of kaon-hyperon final states to the magnetic moment of the proton and the neutron. We find that the contributions are small. The approximation of sigma_{TT'} by sigma_{T} clearly overestimates the value of the GDH integral. We find a smaller upper bound for the contributions of kaon-hyperon final states to the proton's anomalous magnetic moment in kaon photoproduction, and a positive contribution for the square of the neutron's magnetic moment.

6 pages, revtex, 1 postscript figure, to appear in Phys. Rev. C

References in corpus (3)

• Photon- and meson-induced reactions on the nucleon
• A unitary model for meson-nucleon scattering
• Gauge-invariant tree-level photoproduction amplitudes with form factors

Cited by in corpus (4)

• Vector meson production and nucleon resonance analysis in a coupled-channel approach for energies m_N < sqrt(s) < 2 GeV II: photon-induced results
• The GDH Sum Rule and Related Integrals
• Contributions of vector meson photoproduction to the Gerasimov-Drell-Hearn sum rule
• Gerasimov-Drell-Hearn Sum Rule and the Discrepancy between the New CLAS and SAPHIR Data