Recent progress in pion photo- and electroproduction analysis
Tiator, L. · Drechsel, D. · Kamalov, S. · Yang, S. N.
الأصل · EN
Pion photo- and electroproduction has been studied at threshold and in the resonance region below W=2GeV. At threshold pi⁰ production can be very well explained within a dynamical model derived from an effective chiral Lagrangian. The final state interaction is nearly saturated by single charge exchange rescattering. In the resonance region new electroproduction data at Q²=1GeV² has been analyzed with MAID and longitudinal and transverse photon helicity amplitudes have been determined for different resonances. A detailed study of the E/M and S/M ratios of the N->Delta transition shows a zero crossing of REM near Q²=4GeV², whereas the RSM becomes increasingly negative at large Q².
الترجمة العربية
لا توجد ترجمة عربية لهذا البحث بعد. كن أوّل من يطلبها: تستغرق ثوانيَ معدودة، وتُحفظ النتيجة لكل قارئ قادم.