Hybrid Amplitude Determination in Charged Kaon Photoproduction and Comparison with Partial Waves Analysis in the Energy Range of 1800 to 2300 Mev and

Ghasem Forozani

doi:10.5539/apr.v3n2p137

Abstract

The magnitude of four independent amplitudes is determined in charged kaon photoproduction in the energy range of 1500 to 2300MeV incident photon. Differential cross section and three polarization parameters are required for such amplitudes reconstruction at different kaon scattering angles. This analysis has indicated that the magnitudes of spin-flip amplitudes of the target nucleon dominate over the non-flip ones in all energies and scattering angles. The results have been compared with the solution of phase shift analysis sp98 at all energies. This analysis indicates that here is a good agreement between the present work and the results of phase shift analysis at all energies and scattering angles.

Highlights

The use of polarization experiments as a source of information about particle reactions in atomic, nuclear and high energy physics have increased substantially in recent years (Forozani Gh. 2004), (Ghahramany N.and Forozani Gh. 2000), (Bystricky J., Lechanoine-Leluc C. and Lehar F. 1998), (Bydzovsky p., Mart T. 2007), (Salam A., Mart T., Miyagawa K.2009)
The magnitude of four independent amplitudes is determined in charged kaon photoproduction in the energy range of 1500 to 2300MeV incident photon
This analysis indicates that here is a good agreement between the present work and the results of phase shift analysis at all energies and scattering angles

Summary

Introduction

The use of polarization experiments as a source of information about particle reactions in atomic, nuclear and high energy physics have increased substantially in recent years (Forozani Gh. 2004), (Ghahramany N.and Forozani Gh. 2000), (Bystricky J., Lechanoine-Leluc C. and Lehar F. 1998), (Bydzovsky p., Mart T. 2007), (Salam A., Mart T., Miyagawa K.2009). The best way for checking the validity of model-dependent contributions to phase shift analysis is to compare the phase shift analysis amplitude predictions with the direct reconstruction from the amplitude analysis. The consistency between the results will either suggest a possible anomaly in the data base, or will throw a doubt on the validity of the obtained phase shift analysis solutions (Ball J. et al, 1998). The magnitudes of these amplitudes are obtained in terms of four experimental observables, namely d / d (the unpolarized differential cross-section), P( ) (the recoil nucleon polarization), T ( ) (the conventional polarized target asymmetry) and ( ) (the conventional polarized photon asymmetry)

General Formalism Lets consider the general interaction

Optimal conventions

Construction of Transition amplitudes

Conclusion