کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8182631 | 1527046 | 2018 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation of nonlinear isoscalar-isovector coupling in a relativistic mean-field model by elastic magnetic electron scattering
ترجمه فارسی عنوان
بررسی اتصال کوپلینگ ایزوسالار غیرخطی در یک مدل میدان متوسط نسبیتی با پراکندگی الکترونهای مغناطیسی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
چکیده انگلیسی
In this paper, we study the sensitivity of single valence neutron properties and elastic magnetic form factors to three different relativistic mean-field (RMF) parameter sets: NL3, FSUGold, and IU-FSU. To perform our calculation, seven odd-A nuclei having single valence neutron on top of a magic neutron core: Be7, O17, Ca41, Ni57, Zr91, Ba139, and Pb209 are considered as model nuclei. The wave-function of the outer most neutron orbit, matter density, valence neutron density, and magnetic form factors are numerically calculated. It is shown that there are significant differences between the magnetic form factors in the mediate- and high-momentum transfer regions when calculate with different parameter sets. Such separation is more evident with larger nuclear mass and isospin asymmetry. By fitting to the experimental data, the spectroscopic factors for O17 and Ca41 are obtained. From the fitting, we infer that including the isoscalar-isovector meson self-coupling can give a better performance of the RMF calculation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics A - Volume 978, October 2018, Pages 1-12
Journal: Nuclear Physics A - Volume 978, October 2018, Pages 1-12
نویسندگان
Xiaoyong Guo, Jian Liu, Zaijun Wang, Zimeng Chi,