کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8182668 1527049 2018 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Elastic scattering of spin-polarized electrons and positrons from 23Na nuclei
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Elastic scattering of spin-polarized electrons and positrons from 23Na nuclei
چکیده انگلیسی
Differential cross sections and polarization correlations for the scattering of relativistic spin-polarized leptons from unpolarized ground-state sodium nuclei are calculated within the distorted-wave Born approximation (DWBA). Various nuclear ground-state charge distributions are probed. Besides potential scattering, also electric C2 and magnetic M1 and M3 transitions are taken into account. It is shown that even for a light nucleus such as 23Na there are considerable electron-positron differences at high collision energies and large scattering angles. In particular, the symmetry of the Sherman function with respect to a global sign change, as predicted by the second-order Born approximation when replacing electrons by positrons, is broken whenever the diffraction structures come into play beyond 100 MeV.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics A - Volume 975, July 2018, Pages 107-121
نویسندگان
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