A Phenomenological Description of π−∆++ Photo- and Electroproduction in Nucleon Resonance Region
نویسندگان
چکیده
The π∆ production on the nucleon by real and virtual photons is discussed as initial step in a simple model approach for the two pion photoand electroproduction on the nucleon, with emphasis on nucleon resonance excitation which is of interest for new facilities like TJNAF. A calculation for π∆ channel in resonance excitation region is presented and compared to existing experimental data along with a discussion of physical effects that we find to be of relevance. The calculation is proposed as a starting basis for the investigation of N∗ electromagnetic form factors using experimental data about two pion production by real and virtual photons.
منابع مشابه
Erratum to “ A phenomenological description of π − ∆ + + photo - and electroproduction in nucleon resonance region ” [ Nucl . Phys . A 672 ( 2000 ) 220 - 248 ]
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تاریخ انتشار 2008