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Research Interests: Physics, Quantum Physics, Particle Physics, Quantum Electrodynamics, Quark Gluon Plasma, and 15 moreHigh Energy Physics Phenomenology, Physical, Nuclear Reactions, Mathematical Model, Elastic Scattering, Magnetic Monopole, Scattering, Nuclear Theory, Quark, Photon, Quark Matter, Ultra Relativistic Heavy Ion Collision, Elementary Particles, Emission rate, and RGB-HIS color model
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Research Interests: Physics, Quantum Physics, Particle Physics, Quantum Chromodynamics, Quantum Electrodynamics, and 15 moreMedicine, Lattice Field Theory, Nuclear, Molecular, Physical, Lattice QCD, Effective mass, Atomic, Bound States, Differential equation, Electric Field, Perturbation Theory, Elementary Particles, Effective Potential, and Angular Momentum
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There are no "three regimes of QCD", as speculated in that paper. There are only two, separated by already well known $T_c\sim 155\, MeV$. Above it electric interactions are screened rather then confined. Magnetic ones remain... more
There are no "three regimes of QCD", as speculated in that paper. There are only two, separated by already well known $T_c\sim 155\, MeV$. Above it electric interactions are screened rather then confined. Magnetic ones remain confined all the way to $T\rightarrow \infty$. Spectrum of "mesonic screening masses" is there, but they do not represent real masses. At high $T$ they correspond to "heavy quarkonia" of 2+1 d gauge theory, which is well known to be a confining theory. There is no reason to expect any transition unbinding them, at $T\sim 1\, GeV$ as claimed. I make calculation of correction to screening masses in 2+1d at high temperature including spatial screening tension and find results in agreement with recent lattice data.
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Paradigm shift in gauge topology at finite temperatures, from the instantons to their constituents – instanton-dyons – has recently lead to studies of their ensembles and very significant advances. Like instantons, they have fermionic... more
Paradigm shift in gauge topology at finite temperatures, from the instantons to their constituents – instanton-dyons – has recently lead to studies of their ensembles and very significant advances. Like instantons, they have fermionic zero modes, and their collectivization at suffciently high density explains the chiral symmetry breaking transition. Unlike instantons, these objects have electric and magnetic charges. Simulations of the instanton-dyon ensembles have demonstrated that their back reaction on the Polyakov line modifies its potential and generates the deconfinement phase transition. For the Nc = 2 gauge theory the transition is second order, for QCD-like theory with Nc = 2 and two light quark flavors Nf = 2 both transitions are weak crossovers at happening at about the same condition. Introduction of quark-flavor-dependent periodicity phases (imaginary chemical potentials) leads to drastic changes in both transitions. In particulaly, in the so called Z(Nc) – QCD model th...
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The instanton/sphaleron processes involve gauge fields with changing topology, including a nonzero variation of the Chern-Simons number ∆NCS = ±1. In QCD such processes lead to the production of 2Nf∆NCS units of the axial charge,... more
The instanton/sphaleron processes involve gauge fields with changing topology, including a nonzero variation of the Chern-Simons number ∆NCS = ±1. In QCD such processes lead to the production of 2Nf∆NCS units of the axial charge, proportional to the number of light quark flavors Nf = 3, for u, d, s. In the electroweak theory such processes lead to the production of 12 fermions, with ∆B = ∆L = ±3 units of baryon and lepton number. While this is all known for a long time, and is one of the pillars of the nonperturbative theory of the QCD vacuum, in this paper we discuss what we call a “reclined tunneling”, in which external forces are added to the tunneling processes and create certain gluonic objects with positive invariant mass. The idea to observe these objects experimentally at hadronic colliders have been proposed before, but insofar without success. Motivated by the recent CERN workshop on the topic, we review these ideas. We put forward our own suggestions, in particular to uti...
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The main objective of this work is to explore the evolution in the structure of the quark-anti-quark bound states in going down in the chirally restored phase from the so-called "zero binding points" T_zb to the full... more
The main objective of this work is to explore the evolution in the structure of the quark-anti-quark bound states in going down in the chirally restored phase from the so-called "zero binding points" T_zb to the full (unquenched) QCD critical temperature T_c at which the Nambu-Goldstone and Wigner-Weyl modes meet. In doing this, we adopt the idea recently introduced by Shuryak and Zahed for charmed c̅ c, light-quark q̅ q mesons π, σ, ρ, A_1 and gluons that at T_zb, the quark-anti-quark scattering length goes through ∞ at which conformal invariance is restored, thereby transforming the matter into a near perfect fluid behaving hydrodynamically, as found at RHIC. We show that the binding of these states is accomplished by the combination of (i) the color Coulomb interaction, (ii) the relativistic effects, and (iii) the interaction induced by the instanton-anti-instanton molecules. The spin-spin forces turned out to be small. While near T_zb all mesons are large-size nonrelat...