کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1851393 1528906 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spin asymmetry for the 16O(γ→,π−p) reaction in the Δ(1232) region within an effective Lagrangian approach
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Spin asymmetry for the 16O(γ→,π−p) reaction in the Δ(1232) region within an effective Lagrangian approach
چکیده انگلیسی
The spin asymmetry of the photon in the exclusive A(γ→,πN)A−1 reaction is computed employing a recently developed fully relativistic model based on elementary pion production amplitudes that include a consistent treatment of the spin-3/2 nucleon resonances. We compare the results of this model to the only available data on Oxygen [K. Hicks, et al., Phys. Rev. C 61 (2000) 054609] and find that, contrary to other models, the predicted spin asymmetry compares well to the available experimental data in the Δ(1232) region. Our results indicate that no major medium modifications in the Δ(1232) properties are needed in order to describe the measured spin asymmetries.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 664, Issues 1–2, 12 June 2008, Pages 57-63
نویسندگان
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