Orientation and alignment in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">H</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>-H collisions

Hansen, J. P.; Dubois, Alain; Nielsen, Svend Erik

doi:10.1103/physreva.44.6130

Cited by 9 publications

(9 citation statements)

References 19 publications

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“…µ t a , and A a µ , V a µ are external sources coupled to axial and vector currents. The result coming from the sum of all three graphs is parameterization-independent and has the form [83,86] F π (T ) = F π (0) 1 − N f 24…”

Section: Pion Collective Excitationsmentioning

confidence: 99%

Physics of thermal QCD

1997

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Section: Pion Collective Excitationsmentioning

confidence: 99%

Physics of thermal QCD

1997

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“…The second line in Eq. (11) is approximately the gap equation of the quark condensate [37,38]. By minimizing the thermodynamic potential with respect to the quark condensate q f q f , this definition becomes obvious, which shall play an essential role in clarifying the impacts of OPT compared to MFA, Fig.…”

Section: Optimized Perturbation Theory and Mean-field Approximationmentioning

confidence: 99%

“…The modified Fermi-Dirac distribution functions for quarks and antiquarks, Eq. (13), with finite Polyakov-loop variables are derived explicitly by the summation over the Matsubara frequencies [37]. These distribution functions straightforwardly lead to the standard form, especially in the limit that φ, φ * → 1, i.e.…”

Section: Optimized Perturbation Theory and Mean-field Approximationmentioning

confidence: 99%

Polyakov linear- σ model in mean-field approximation and optimized perturbation theory

Tawfik¹,

Greiner

Diab

et al. 2020

Phys. Rev. C

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We compare results from the Polyakov linear-sigma model (PLSM) in optimized perturbation theory (OPT) with the mean-field approximation (MFA). At finite temperatures and chemical potentials, the chiral condensates and the decofinement order parameters, the thermodynamic pressure, the pseudo-critical temperatures, the subtracted condensates, the second-and high-order moments of various conserved charges (cumulants) obtained in MFA are compared with OPT and also confronted to available lattice QCD simulations. We conclude that when moving from lower-to higher-order moments of various quantum charges, OPT becomes more closer to QCD.

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“…T 0 = 0.27 GeV is the critical temperature of the deconfinement transition in the pure gauge limit when quarks are assumed to be infinitely heavy. The grand potential density for the PNJL (N f =2) model in the mean-field approximation can be obtained from the Lagrangian density (1) as [2,11]:…”

Section: Pnjl With Vector Interactionmentioning

confidence: 99%

“…After performing the hadronization procedure the constituent quark mass m can be obtained as a solution of the gap equation (by minimization of Ω with respect to m: ∂Ω/∂m = 0) . This condition is equivalent to the gap equation [2,11]. There is also an equation forμ obtained as ∂Ω/∂ρ = 0.…”

Section: Pnjl With Vector Interactionmentioning

confidence: 99%

Vector interaction effect on thermodynamics and phase structure of QCD matter

Friesen

Kalinovsky

Тонеев

2015

Int. J. Mod. Phys. A

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The 2-flavor Polyakov-loop extended model is generalized by taking into account the effective fourquark vector-type interaction with the coupling strengths, which are endowed with a dependence on the Polyakov field Φ. The effective vertex generates entanglement interaction between the Polyakov loop and the chiral condensate. We investigate the influence of an additional quark vector interaction and the entanglement interaction on the location of the critical end-point at the given chemical potential or quark density. It is shown that the finite value of the vector interaction strength Gv improves the model agreement with the lattice data. The influence of the non-zero Gv and entanglement on the thermodynamic observables and the curvature of the crossover boundary in the T − µ plane is also examined.

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Orientation and alignment inH+-H collisions

Cited by 9 publications

References 19 publications

Physics of thermal QCD

Physics of thermal QCD

Polyakov linear- σ model in mean-field approximation and optimized perturbation theory

Vector interaction effect on thermodynamics and phase structure of QCD matter

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