Hadronization of a quark-gluon plasma in the chromodielectric model

Traxler, Christoph; Mosel, U.; Bı́ró, Tamás

doi:10.1103/physrevc.59.1620

Cited by 23 publications

(30 citation statements)

References 58 publications

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“…In [31] the disintegration of qq-pairs in strong color electric fields has been observed. A full molecular dynamical simulation of hadronization out of a gas of quarks and gluons has been presented in [32].…”

Section: Introductionmentioning

confidence: 99%

Interactions of multiquark states in the chromodielectric model

et al. 2006

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We investigate 4-quark (qqqq) systems as well as multi-quark states with a large number of quarks and anti-quarks using the chromodielectric model. In the former type of systems the flux distribution and the corresponding energy of such systems for planar and non-planar geometries are studied. From the comparison to the case of two independent qq-strings we deduce the interaction potential between two strings. We find an attraction between strings and a characteristic string flip if there are two degenerate string combinations between the four particles. The interaction shows no strong Van-der-Waals forces and the long range behavior of the potential is well described by a Yukawa potential, which might be confirmed in future lattice calculations. The multi-quark states develop an inhomogeneous porous structure even for particle densities large compared to nuclear matter constituent quark densities. We present first results of the dependence of the system on the particle density pointing towards a percolation type of transition from a hadronic matter phase to a quark matter phase. The critical energy density is found at εc = 1.2 GeV/fm 3 .

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Section: Introductionmentioning

confidence: 99%

Interactions of multiquark states in the chromodielectric model

et al. 2006

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“…In the second parameter set a pronounced relative maximum develops (dashed line). We note that the values of the bag constant B are much larger than the value B 1=4 145 MeV chosen in the original MIT bag model [1] and also in a previous CDM analysis [28]. Recall that in [28] the string profile is much broader and inconsistent with lattice results.…”

Section: A Cdm and Lattice Resultsmentioning

confidence: 91%

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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“…With a bag constant B = (320 MeV) 4 and σ vac = 1.5 fm −1 we get a string tension τ = 988 MeV/fm and an effective strong coupling α eff = 0.29. qqq configurations with large qq separations tend to show a Y shaped geometry.…”

Section: Discussionmentioning

confidence: 99%

“…In this talk we present static calculations within the Chromodielectric Model [2,3,4], namely the detailed analysis of quark-antiquark strings and three-quark configurations.…”

Section: Introductionmentioning

confidence: 99%

Chromofields of strings and baryons

et al. 2003

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Abstract. We calculate color electric fields of quark/antiquark (qq) and 3 quark (qqq) systems within the chromodielectric model (CDM). We explicitly evaluate the string tension of flux tubes in theqq-system and analyze their profile. To reproduce results of lattice calculations we use a bag pressure B = (320MeV) 4 from which an effective strong coupling constant αs ≈ 0.3 follows. With these parameters we get a Y shaped configuration for large qqq-systems.

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Hadronization of a quark-gluon plasma in the chromodielectric model

Cited by 23 publications

References 58 publications

Interactions of multiquark states in the chromodielectric model

Interactions of multiquark states in the chromodielectric model

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

Chromofields of strings and baryons

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