منابع مشابه
Solitons as baryons and qualitons as constituent quarks in two-dimensional QCD
We study the soliton type solutions arising in two-dimensional quantum chromodynamics (QCD2). In bosonized QCD2 these type of solutions emerge as describing baryons and quark solitons (excitations with “colored” states), respectively. The so-called generalized sine-Gordon model (GSG) arises as the low-energy effective action of bosonized QCD2 for unequal quark mass parameters, and it has been s...
متن کاملBaryons with two heavy quarks as solitons.
Using the chiral soliton model and heavy quark symmetry we study baryons containing two heavy quarks. If there exists a stable (under strong interactions) meson consisting of two heavy quarks and two light ones, then we find that there always exists a state of this meson bound to a chiral soliton and to a chiral anti-soliton, corresponding to a two heavy quark baryon and a baryon containing two...
متن کاملConstituent Quarks from Qcd
Starting from the observation that colour charge is only well defined on gauge invariant states, we construct perturbatively gauge invariant, dynamical dressings for individual quarks. Explicit calculations show that an infra-red finite mass-shell renormalisation of the gauge invariant, dressed propagator is possible and, further, that operator product effects, which generate a running mass, ma...
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We review the theory and present status of the proton spin problem with emphasis on the transition between current quarks and constituent quarks in QCD. Steven [email protected]
متن کاملTwo-Pion Exchange Interaction Between Constituent Quarks
The two–pion exchange interaction between constituent quarks is shown to enhance the effect of the the isospin dependent spin–spin component of the one–pion exchange interaction, and to cancel out its tensor component. It therefore provides a partial explanation for the phenomenological observation that the hyperfine interaction between constituent quarks is well described by a flavor dependent...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1991
ISSN: 0370-2693
DOI: 10.1016/0370-2693(91)91839-n