کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5493874 | 1527055 | 2018 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Calculations of antiproton-nucleus quasi-bound states using the Paris N¯N potential
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
An optical potential constructed using the p¯N scattering amplitudes derived from the 2009 version of the Paris N¯N potential is applied in calculations of p¯ quasi-bound states in selected nuclei across the periodic table. A proper self-consistent procedure for treating energy dependence of the amplitudes in a nucleus appears crucial for evaluating p¯ binding energies and widths. Particular attention is paid to the role of P-wave amplitudes. While the P-wave potential nearly does not affect calculated p¯ binding energies, it reduces considerably the corresponding widths. The Paris S-wave potential supplemented by a phenomenological P-wave term yields in dynamical calculations p¯ binding energies Bp¯â200 MeV and widths Îp¯â¼200-230 MeV, which is very close to the values obtained within the RMF model consistent with p¯-atom data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics A - Volume 969, January 2018, Pages 45-59
Journal: Nuclear Physics A - Volume 969, January 2018, Pages 45-59
نویسندگان
Jaroslava Hrtánková, JiÅà MareÅ¡,