We present a method to compute thermodynamic quantities within functional continuum frameworks that is independent of the employed truncation. As proof principle, we first apply it Nambu-Jona-Lasinio model in mean-field approximation. Then, use with solutions obtained from coupled set truncated Dyson-Schwinger equations for quark and gluon propagators ($2+1$)-flavor quantum chromodynamics Landa...

We study the induced photon bremsstrahlung from a fast quark produced in AA-collisions due to multiple scattering in quark-gluon plasma. For RHIC and LHC conditions the induced photon spectrum is sharply peaked at photon energy close to the initial quark energy. In this region the contribution of the induced radiation to the photon fragmentation function exceeds the ordinary vacuum radiation. C...

We present a computation of the cross section for inclusive Higgs production in gluon–gluon fusion for finite values of the top mass in perturbative QCD to all orders in the limit of high partonic center–of–mass energy. We show that at NLO the high energy contribution accounts for most of the difference between the result found with finite top mass and that obtained in the limit mt → ∞. We use ...

We obtain the masses, electromagnetic properties, and parton distribution functions (PDFs) of $\mathrm{\ensuremath{\Lambda}}$, ${\mathrm{\ensuremath{\Lambda}}}_{c}$, their isospin triplet baryons, i.e., ${\mathrm{\ensuremath{\Sigma}}}^{0}$, ${\mathrm{\ensuremath{\Sigma}}}^{+}$, ${\mathrm{\ensuremath{\Sigma}}}^{\ensuremath{-}}$ ${\mathrm{\ensuremath{\Sigma}}}_{c}^{0}$, ${\mathrm{\ensuremath{\Sig...

A study of the J/ψ-meson photoproduction at large transverse momentum at HERA energies via the charm quark excitation in the photon is presented. Based on perturbative QCD, nonrelativistic quark model and photon structure function formalism, our calculation demonstrates that the charm content of the photon may be very important for the J/ψ photoproduction at the large transverse momentum. It is...

After the gauge invariant gluon condensation, gluons remain as massless excitations. When an effective theory desribing the condensation and the excitaion is constructed, a constraint has to be imposed for the vacuum to be stable. The constraint implies the perfect dia-electricity and assures the solution of color flux tube when qurks are introduced. Thus the dia-electric model of Kogut-Susskin...