کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8186885 1528776 2018 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The nuclear contacts and short range correlations in nuclei
ترجمه فارسی عنوان
ارتباطات هسته ای و ارتباطات کوتاه مدت در هسته
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
چکیده انگلیسی
Atomic nuclei are complex strongly interacting systems and their exact theoretical description is a long-standing challenge. An approximate description of nuclei can be achieved by separating its short and long range structure. This separation of scales stands at the heart of the nuclear shell model and effective field theories that describe the long-range structure of the nucleus using a mean-field approximation. We present here an effective description of the complementary short-range structure using contact terms and stylized two-body asymptotic wave functions. The possibility to extract the nuclear contacts from experimental data is presented. Regions in the two-body momentum distribution dominated by high-momentum, close-proximity, nucleon pairs are identified and compared to experimental data. The amount of short-range correlated (SRC) nucleon pairs is determined and compared to measurements. Non-combinatorial isospin symmetry for SRC pairs is identified. The obtained one-body momentum distributions indicate dominance of SRC pairs above the nuclear Fermi-momentum.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 780, 10 May 2018, Pages 211-215
نویسندگان
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