A dynamical model of color confinement

Loh, S. K.; Bı́ró, Tamás; Mosel, U.; Thoma, Markus H.

doi:10.1016/0370-2693(96)01125-2

Cited by 7 publications

(14 citation statements)

References 27 publications

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“…The quark degrees of freedom are handled via a transport equation derived by Elze and Heinz [23] (see also Blttel et al [24]). In previous publications [25,26,27] we have investigated the dynamical confinement properties in nucleon-nucleon collision in the colorless version of the model as well as color-excitations in the full model, whereas here the outline is as follows:…”

Section: Introductionmentioning

confidence: 99%

Dynamical fragmentation of flux tubes in the Friedberg-Lee model

et al. 1997

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We present two novel dynamical features of flux tubes in the Friedberg-Lee model. First the fusion of two (anti-)parallel flux tubes, where we extract a string-string interaction potential which has a qualitative similarity to the nucleon-nucleon potential in the Friedberg-Lee model obtained by Koepf et al. Furthermore we show the dynamical breakup of flux tubes via $q\bar{q}-$particle production and the disintegration into mesons. We find, as a shortcoming of the present realization of the model, that the full dynamical transport approach presented in a previous publication fails to provide the disintegration mechanism in the semiclassical limit. Therefore, in addition, we present here a molecular dynamical approach for the motion of the quarks and show, as a first application, the space-time development of the quarks and their mean-fields for Lund-type string fragmentation processes.Comment: 37 pages, 10 PostScript figures, Late

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Section: Introductionmentioning

confidence: 99%

Dynamical fragmentation of flux tubes in the Friedberg-Lee model

et al. 1997

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“…As a consequence the transverse shape of the color flux tube becomes steeper with vanishing κ vac and the energy of the system still increases even for very small values of κ vac . The actual polynomial choice is very similar to that in [20] and [42]. All parameters defined in eqs.…”

Section: The Chromo Dielectric Modelmentioning

confidence: 99%

Two- and three-body color flux tubes in the chromodielectric model

et al. 2004

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Using the framework of the chromodielectric model we perform an analysis of color electric flux tubes in mesonlike q q and baryonlike qqq quark configurations. We discuss the Abelian color structure of the model and point out a symmetry in color space as a remnant of the SU(3) symmetry of QCD. The generic features of the model are discussed by varying the model parameters. We fix these parameters by reproducing the string tension 980 MeV=fm and the transverse width 0:35 fm of the q q flux tube obtained in lattice calculations. We use a bag constant B 1=4 240 ÿ 260 MeV, a glueball mass m g 1000 ÿ 1700 MeV, and a strong coupling constant C F s 0:2 ÿ 0:3. We show that the asymptotic string profile of an infinitely long flux tube is already reached for q q separations R 1:0 fm. A connection to the dual color superconductor is made by extracting a magnetic current from the model equations and a qualitative agreement between the two descriptions of confinement is shown. In the study of the qqq system we observe a -like geometry for the color electric fields and a Y-like geometry in the scalar fields both in the energy density distribution and in the corresponding potentials. The resulting total qqq potential is described neither by the -picture nor by the Y-picture alone.

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“…So from now on, the color index a is generally restricted to the values 3 and 8. This approach amounts to taking a U (1) × U (1) abelian subgroup of the full SU (3) gauge group of QCD, and is therefore called the abelian approximation [27,25]. However, in contrast to the cited works, we do not simply drop the other, charged, gluons.…”

Section: Treatment Of Color Charges Field Equations and Hadronsmentioning

confidence: 99%

“…Suppose it cannot be subdivided into smaller but still white subclusters. Then, flux tubes bind the cluster together, forcing it to rotate or oscillate in a "yoyo" mode [25,26]. Thus it will emit σ waves, which cool the cluster down.…”

Section: B Hadrons As Irreducible White Clustersmentioning

confidence: 99%

“…An alternative model, the chromodielectric model (CDM) originally proposed by Friedberg and Lee [18], describes hadrons as clusters of quarks bound in a phenomenological scalar potential. While there have been a tantamount number of studies of stationary states of this model with quantum-mechanical quarks [19][20][21][22], a real-time dynamical approach is quite recent [23][24][25][26]. The latter studies utilized semi-classical transport theory, treating quarks like classical charge clouds.…”

Section: Introductionmentioning

confidence: 99%

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Hadronization of a quark-gluon plasma in the chromodielectric model

1999

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We have carried out simulations of the hadronization of a hot, ideal but effectively massive quark-gluon gas into color neutral clusters in the framework of the semiclassical SU(3) chromodielectric model. We have studied the possible quark-gluon compositions of clusters as well as the final mass distribution and spectra, aiming to obtain an insight into relations between hadronic spectral properties and the confinement mechanism in this model. pacs: 12.38.Mh, 12.38.Lg, 24.85+p

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A dynamical model of color confinement

Cited by 7 publications

References 27 publications

Dynamical fragmentation of flux tubes in the Friedberg-Lee model

Dynamical fragmentation of flux tubes in the Friedberg-Lee model

Two- and three-body color flux tubes in the chromodielectric model

Hadronization of a quark-gluon plasma in the chromodielectric model

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