Effective chiral hadron lagrangian with anomalies and skyrme terms from quark flavour dynamics

Эберт, Д.; Reinhardt, Hugo

doi:10.1016/0550-3213(86)90359-7

Cited by 451 publications

(485 citation statements)

References 47 publications

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“…A Fierz transformation of an interaction with the quantum numbers of a one-gluon exchange gives G V = G S /2, whereas fits to the omega-meson mass typically yield higher values [65,132]. An analysis of lattice results, on the other hand, seems to disfavor large vector couplings [133,134].…”

Section: Vector Interactionsmentioning

confidence: 99%

Inhomogeneous chiral condensates

Buballa

Carignano

2015

Progress in Particle and Nuclear Physics

241

258

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The chiral condensate, which is constant in vacuum, may become spatially modulated at moderately high densities where in the traditional picture of the QCD phase diagram a first-order chiral phase transition occurs. We review the current status of this idea, which originally dates back to Migdal's pion condensation, but recently received new momentum through studies on the nature of the chiral critical point and by the conjecture of a quarkyonic-matter phase. We discuss how these nonuniform phases emerge in generalized Ginzburg-Landau analyses as well as in specific calculations, both within effective models and in Dyson-Schwinger or large-N c approaches to QCD. Questions about the most favored shape of the modulations and its dimension, and about the effects of nonzero isospin chemical potential, strange quarks, color superconductivity, and external magnetic fields on these inhomogeneous phases will be addressed as well.

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Section: Vector Interactionsmentioning

confidence: 99%

Inhomogeneous chiral condensates

Buballa

Carignano

2015

Progress in Particle and Nuclear Physics

241

258

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“…N f = 3. By path integral bosonization the model can be converted into an e ective meson theory yielding the action [10] …”

Section: Baryons In the Njl Modelmentioning

confidence: 99%

“…Imitating the quark avor dynamics of QCD at low energies the NJL model contains both reference to explicit quark degrees of freedom as well as the fruitful concepts of chiral symmetry and its spontaneous breaking. The model provides a fair description of the pseudoscalar and vector mesons as quark{antiquark bound states [10,11,12]. In addition, it contains soliton solutions [13] in the two avor subspace which may be identi ed as baryons a .…”

Section: Introductionmentioning

confidence: 99%

On the strange vector form factors of the nucleon in the NJL soliton model

et al. 1995

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Within the Nambu{Jona{Lasinio model strange degrees of freedom are incorporated into the soliton picture using the collective approach of Yabu and Ando. The form factors of the nucleon associated with the nonet vector current are extracted. The numerical results provide limits for the strange magnetic moment: 00:05 s 0:25. For the strange magnetic form factor of the nucleon the valence quark and vacuum contributions add coherently while there are signi cant cancellations for the strange electric form factor. |||||| y Supported by the Deutsche Forschungsgemeinschaft (DFG) under contract number Re{856/2-2. z Supported by a Habilitanden scholarship of the DFG.

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“…The vector coupling constant could be determined by fitting vector meson masses. In the literature this usually leads to G V /G S of the order of 0.5 to 1 [2,6] although much higher values are also found [10]. On the other hand a realistic vector coupling constant in dense matter could be rather different from the vacuum one.…”

Section: Stability Of Quark Matter At T=0mentioning

confidence: 99%