منابع مشابه
Low Scale Saturation of Effective NN Interactions and Their Symmetries
The Skyrme force parameters can be uniquely determined by coarse graining the Nucleon-Nucleon (NN) interactions at a characteristic momentum scale. We show how exact Vlowk potentials to second order in momenta are saturated with physical NN scattering threshold parameters at Center of Mass (CM) cut-off scales of about Λ = 250 MeV for the S-waves and Λ = 100 MeV for the P-waves. The pattern of W...
متن کاملFrom the NN Interaction to Nuclear Structure and Reactions
Abstract. We present a novel approach for the treatment of realistic nucleonnucleon interactions in nuclear many-body systems. A unitary correlation operator is used to explicitly introduce short-range central and tensor correlations in many-body states. The resulting correlated interaction serves as an effective interaction in nuclear structure calculations. Results for Lithium isotopes includ...
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این مطالعه به دو روش کمی و کیفی و با هدف بررسی استراتژی های فراشناختی فراگیران زبان انگلیسی به عنوان زبان خارجی در دو آزمون نوشتن و نوشتن ترکیبی انجام پذیرفت. در بخش کمی برای سنجش میزان استراتژی های فراشناختی از یک پرسشنامه که بر اساس مدل بکمن و پالمر (1996) ساخته شده بود استفاده شد. پایایی و روایی سازه ی پرسشنامه هنگام مطالعه ی پایلوت و روایی محتوای آن با جمع آوری نظرات نُه متخصص در رشته سنجیده...
Power Counting for and Symmetries of the Effective Field Theory for Nn Interactions
The appropriate power counting for the effective field theory of NN interactions is reviewed. It is more subtle than in most effective field theories since in the limit that the S-wave NN scattering lengths go to infinity it is governed by a nontrivial fixed point. The leading two body terms in the effective field theory for nucleon self interactions are scale invariant and invariant under Wign...
متن کاملReview of NN Interaction from Lattice QCD
Understanding the strong interaction in multi-hadron systems from lattice QCD is a notoriously difficult problem. Multi-hadron states involve the computation of a four-point function and are relatively massive, and therefore the corresponding correlation functions quickly vanish into noise. Furthermore, they are large, and therefore the spatial extent of the lattice needs to be correspondingly ...
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ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 1992
ISSN: 0375-9474
DOI: 10.1016/0375-9474(92)90432-j