On Collective Properties of Dense QCD Matter

Dremin, I.; Kirakosyan, M.; Leonidov, A.

doi:10.1155/2013/706521

Cited by 3 publications

(2 citation statements)

References 68 publications

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“…Since then a lot of work was done on correlations and fluctuations of characteristic distributions of particles created from such a medium. More recently, some work on kinetic properties of the quark-gluon medium has been done as reviewed in [12]. The instabilities and time evolution of the newly created state of matter are the main topics of recent research [13].…”

Section: Correlations and Fluctuationsmentioning

confidence: 99%

Hadronic Matter: The Moscow Perspective

Dremin

2016

Melting Hadrons, Boiling Quarks - From Hagedorn Temperature to Ultra-Relativistic Heavy-Ion Collisions at CERN

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I describe studies done by the theory group of Lebedev Physical Institute in Moscow and point out the cross-influence of some of our work with that of Rolf Hagedorn, and show how this research continued and evolved up to the present. 9.1 The Beginning Cosmic Rays and Landau High energy hadron interactions were always one of the main topics of research at the Moscow Lebedev Physical Institute. On the experimental side, cosmic ray studies which started already in the 1930s were quite successful. The interest in high energy studies further increased after construction of first accelerator at the Institute with active participation of V.I. Veksler who soon proposed the autofocusing concept (1944) and moved to Dubna with many collaborators to realize his visions and build accelerators. In parallel, theoretical work became more intense. Many researchers became excited seeing L.D. Landau paper on the hydrodynamic model of hadron interactions in 1953 [1]. Landau used to say that the work on it was the most hard, and time-consuming compared to all other of his papers. Actually, it was the first one which contained the detailed calculations ascribing the macroscopic features to the microscopic objects along the line of thought initiated by E. Fermi in 1950. At that time, in my 3rd graduate year, I devoted several days to studying Landau's paper in the Moscow Polytechnic library. Landau's approach was widely discussed by theorists at LPI. Hydrodynamic equations were further analyzed by E.L. Feinberg, D.S. Chernavsky and G.A. Milekhin. They published a series of papers on this topic in the 1950s. This

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Section: Correlations and Fluctuationsmentioning

confidence: 99%

Hadronic Matter: The Moscow Perspective

Dremin

2016

Melting Hadrons, Boiling Quarks - From Hagedorn Temperature to Ultra-Relativistic Heavy-Ion Collisions at CERN

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“…In Refs. [14][15][16] it was argued that the pre-equilibrium glasma phase also can give large contribution to the photon emission in AA collisions. Unfortunately, uncertainties in the theoretical predictions for the boundary photon emission [13] and the photon emission from the glasma [14][15][16] are rather large.…”

Section: Introductionmentioning

confidence: 99%

Phenomenology of collinear photon emission from quark–gluon plasma in AA collisions

Захаров

2017

Jetp Lett.

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We study the role of running coupling and the effect of variation of the thermal quark mass on contribution of the collinear bremsstrahlung and annihilation to photon emission in AA collisions in a scheme similar to that used in our previous jet quenching analyses. We find that for a scenario with the thermal quark mass mq ∼ 50 − 100 MeV contribution of the higher order collinear processes summed with the 2 → 2 processes can explain a considerable part (∼ 50%) of the experimental photon spectrum at kT ∼ 2 − 3 GeV for Au+Au collisions at √ s = 0.2 TeV. But for mq = 300MeV and for the thermal quark mass predicted by the HTL scheme the theoretical predictions underestimate considerably the experimental spectrum.

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EFFECT OF COLOR RANDOMIZATION ON pT BROADENING OF FAST PARTONS IN TURBULENT QUARK-GLUON PLASMA

Zakharov

2024

Žurnal èksperimentalʹnoj i teoretičeskoj fiziki

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We analyze the effect of the parton color randomization on pT broadening in the quark-gluon plasma with turbulent color fields. We calculate the transport coefficient for a simplified model of fluctuating color fields in the form of alternating sequential transverse layers with homogenous transverse chromomagnetic fields with random orientation in the SU(3) group and gaussian distribution in the magnitude. Our numerical results show that the color randomization can lead to a sizable reduction of the turbulent contribution to ˆq. The magnitude of the effect grows with increasing ratio of the electric and magnetic screening masses.

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On Collective Properties of Dense QCD Matter

Abstract: A short review of the two recently analyzed collective effects in dense non-Abelian matter, the photon and dilepton production in nonequilibrium glasma and polarization properties of turbulent Abelian and non-Abelian plasmas, is given.

Cited by 3 publications

References 68 publications

Hadronic Matter: The Moscow Perspective

Hadronic Matter: The Moscow Perspective

Phenomenology of collinear photon emission from quark–gluon plasma in AA collisions

EFFECT OF COLOR RANDOMIZATION ON pT BROADENING OF FAST PARTONS IN TURBULENT QUARK-GLUON PLASMA

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