Kaon photoproduction on the nucleon : Contributions of kaon-hyperon final states to the magnetic moment of the nucleon
نویسنده
چکیده
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 σTT ′ by σT 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. PACS number(s): 13.60.Le,11.55.Hx, 13.40.Em, 14.20.Dh
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تاریخ انتشار 1999