منابع مشابه
Quark model description of the N-N system: Momentum distributions, structure functions, and the EMC effect.
We employ a relativistic quark bag picture, the chromo-dielectric soliton model, to discuss the quarks’ symmetry structure and momentum distribution in the N -N system. Six-quark clusters are constructed in a constrained mean-field calculation. The corresponding Hamiltonian contains not only an effective interaction between the quarks and a scalar field, which is assumed to parameterize all non...
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A few years ago, Chodos, Minakata and Cooper [1] proposed a 1+1 dimensional field theoretical model which can be solved in the 1/N -expansion and illustrates nicely the phenomenon of Cooper pairing. Independently, the same model has been analyzed by Kleinert and Babaev [2] at finite N in 2+ǫ dimensions, in a somewhat different context. It is closely related to the Gross-Neveu model [3] from whi...
متن کاملTHE ROLE OF QUARK POLARIZATION IN HEAVY QUARK FRAGMENTATION
We calculate the exact fragmentation functions for c and b quark fragmentation taking into account the spin orientation of the initial heavy quark in the form of analytical and rather simple expressions. Our calculations show that spin orientation may have an important effect on the fragmentation spectrum. This effect is more striking in the cases of c ?D, D*; c? ? , ? , and ?B , B *.
متن کاملModel of the N-quark potential in SU(N) gauge theory using gauge-string duality
Article history: Received 9 December 2015 Received in revised form 29 February 2016 Accepted 29 February 2016 Available online 3 March 2016 Editor: A. Ringwald We use gauge-string duality to model the N-quark potential in pure Yang–Mills theories. For SU(3), the result agrees remarkably well with lattice simulations. The model smoothly interpolates between almost the -law at short distances and...
متن کاملNα Rgm by the Quark-model G-matrix N N Interaction
We calculate nα phase-shifts in the resonating-group method (RGM), using the nuclear-matter G-matrix of the SU6 quark-model NN interaction. The interaction RGM kernels are evaluated in the center-of-mass system with explicit treatments of the nonlocality and momentum dependence of the partial-wave G-matrix components determined in symmetric nuclear matter. The momentum dependence of the G-matri...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1976
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.55.777