Quarks and Nuclear Structure
نویسندگان
چکیده
منابع مشابه
Quarks in nuclear medium
Using the quark-meson coupling (QMC) model we study nuclear matter from the point of view of quark degrees of freedom. As the nucleon model we adopt the MIT bag model and the relativistic constituent quark model, where a square well and harmonic oscillator potentials are used to confine the quarks. We introduce the Lorentz-vector type confining potential as well as the Lorentz-scalar type one i...
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Until recently the treatment of heavy flavours in global analyses of structure functions has been rather naive. Usually the charm and bottom quarks were regarded as infinitely massive below Q = m2H , and massless above this threshold. This procedure, known as the zero mass variable flavour number scheme (ZM-VFNS), gives the correct results for Q2/m2H → ∞, but has errors of O(m2H/Q ) and is very...
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We discuss the high-density nuclear equation of state within the BruecknerHartree-Fock approach. Particular attention is paid to the effects of nucleonic three-body forces, the presence of hyperons, and the joining with an eventual quark matter phase. The resulting properties of neutron stars, in particular the mass-radius relation, are determined. It turns out that stars heavier than 1.3 solar...
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The alternative to the standard formulation of the quark-parton model is proposed. Our approach is based on the new solution of the master equations relating the structure and distribution functions, which consistently takes into account the intrinsic quark motion in contradistinction to the standard infinite momentum approach, in which this motion is latently suppressed. The model well reprodu...
متن کاملNuclear Forces and Nuclear Structure
After a historical review, I present the progress in the field of realistic NN potentials that we have seen in recent years. A new generation of very quantitative (high-quality/high-precision) NN potentials has emerged. These potentials will serve as reliable input for microscopic nuclear structure calculations and will allow for a systematic investigation of off-shell effects. The issue of thr...
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ژورنال
عنوان ژورنال: Physik Journal
سال: 1983
ISSN: 0031-9279
DOI: 10.1002/phbl.19830390913