Debye screening at finite temperature reexamined

Schneider, Roland

doi:10.1103/physrevd.66.036003

Cited by 25 publications

(16 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The dielectric permittivity ðkÞ is given in terms of the static limit of the longitudinal part of the gluon self-energy [46]. In the isotropic case, it can be decomposed into longitudinal (Å L ) and transverse (Å T ) components which, in the static limit, are associated with the screening of electric and magnetic fields, respectively.…”

Section: Heavy-quark Effective Potentialmentioning

confidence: 99%

Dissociation of quarkonium in an anisotropic hot QCD medium

et al. 2013

View full text Add to dashboard Cite

We have investigated the properties of quarkonium states in an anisotropic hot QCD medium by correcting the full Cornell potential, not the Coulomb term alone as usually done in the literature, with a dielectric function from the hard-loop resummed gluon propagator. We have found that in-medium modification in anisotropic medium causes less screening than in isotropic medium. In the short distance limit, potential does not show any medium dependence whereas in the long-distance limit, it reduces to the Coulomb potential with a dynamically screened color charge. In addition, anisotropy in momentum space introduces a characteristic angular dependence in the potential and as a result, quarkonium states in anisotropic medium are more tightly bound than in isotropic medium. In particular, quark pairs aligned in the direction of anisotropy are more bound than perpendicular to the direction of anisotropy.Comment: 29 page, 6 figure

show abstract

Section: Heavy-quark Effective Potentialmentioning

confidence: 99%

Dissociation of quarkonium in an anisotropic hot QCD medium

et al. 2013

View full text Add to dashboard Cite

show abstract

“…where ǫ(k) is the dielectric permittivity given in terms of the static limit of the longitudinal part of gluon self-energy [26,27]…”

Section: In-medium Modifications To Heavy-quark Potentialmentioning

confidence: 99%

Dissociation of quarkonium in a hot QCD medium: Modification of the interquark potential

2009

View full text Add to dashboard Cite

We have studied the dissociation of heavy quarkonium states in a hot QCD medium by investigating the medium modifications to a heavy quark potential. Our model shows that in-medium modification causes the screening of the charge in contrast to the screening of the range of the potential. We have then employed the medium-modified potential to estimate the dissociation pattern of the charmonium and bottomonium states and also explore how the pattern changes as we go from the perturbative to nonperturbative domain in the Debye mass. The results are in good agreement with the other current theoretical works both from the spectral function analysis and the potential model study.

show abstract

“…where ǫ(k) is the dielectric permittivity which is obtained from the static limit of the longitudinal part of gluon self-energy [54] …”

Section: Heavy-quark Potentialmentioning

confidence: 99%

Dissociation of heavy quarkonium in hot QCD medium in a quasiparticle model

et al. 2016

View full text Add to dashboard Cite

Following a recent work on the effective description of the equations of state for hot QCD obtained from a Hard thermal loop expression for the gluon self-energy, in terms of the quasi-gluons and quasiquark/anti-quarks with respective effective fugacities, the dissociation process of heavy quarkonium in hot QCD medium has been investigated. This has been done by investigating the medium modification to a heavy quark potential. The medium modified potential has a quite different form (a long range Coulomb tail in addition to the usual Yukawa term) in contrast to the usual picture of Debye screening. The flavor dependence of the binding energies of the heavy quarkonia states and the dissociation temperature have been obtained by employing the debye mass for pure gluonic and full QCD case computed employing the quasi-particle picture. Thus estimated dissociation patterns of the charmonium and bottomonium states, considering Debye mass from different approaches in pure gluonic case and full QCD, have shown good agreement with the other potential model studies. 24.85.+p; 12.38.Mh PACS

show abstract

Debye screening at finite temperature reexamined

Cited by 25 publications

References 11 publications

Dissociation of quarkonium in an anisotropic hot QCD medium

Dissociation of quarkonium in an anisotropic hot QCD medium

Dissociation of quarkonium in a hot QCD medium: Modification of the interquark potential

Dissociation of heavy quarkonium in hot QCD medium in a quasiparticle model

Contact Info

Product

Resources

About