phi meson couplings to the nucleon and strange vector currents
Conference
·
OSTI ID:803343
We investigate within a meson-exchange model the OZI allowed coupling of the phi meson to the nucleon with the inclusion of kaon loops and hyperon excitations. All parameters of the model have previously been determined from a variety of hadronic reactions. A strong cancellation of the various contributions is observed which results in a small phiNN coupling. We also show that a realistic isoscalar spectral function including the correlated {sub pi}rho exchange leads to sizeably reduced strange vector form factors based on the dispersion-theoretical analysis of the nucleons' electromagnetic form factors explaining our previous result.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 803343
- Report Number(s):
- JLAB-THY-97-52; DOE/ER/40150-2293
- Country of Publication:
- United States
- Language:
- English
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