کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8196028 | 1528915 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electroproduction of kaons from the proton in a Regge-plus-resonance approach
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We present a Regge-plus-resonance (RPR) description of the p(e,eâ²K+)Y processes (Y=Î,Σ0) in the resonance region. The background contributions to the RPR amplitude are constrained by the high-energy p(γ,K+)Y data. As a result, the number of free model parameters in the resonance region is considerably reduced compared to typical effective-Lagrangian approaches. We compare a selection of RPR model variants, originally constructed to describe KY photoproduction, with the world electroproduction database. The electromagnetic form factors of the intermediate N*s and Î*s are computed in the Bonn constituent-quark model. With this input, we find a reasonable description of the p(e,eâ²K+)Y data without adding or readjusting any parameters. It is demonstrated that the electroproduction response functions are extremely useful for fine-tuning both the background and resonant contributions to the reaction dynamics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 656, Issues 4â5, 22 November 2007, Pages 186-192
Journal: Physics Letters B - Volume 656, Issues 4â5, 22 November 2007, Pages 186-192
نویسندگان
T. Corthals, T. Van Cauteren, P. Vancraeyveld, J. Ryckebusch, D.G. Ireland,