arXiv subjects

D. Prorok

Publications and source records attributed to D. Prorok.

7 recordsLinked to original sources

arXiv2019

The current algebra representations of quantum many-particle Schr\"odinger type Hamiltonian models, their factorized structure and integrability

There is developed a current algebra representation scheme for reconstructing algebraically factorized quantum Hamiltonian and symmetry operators in the Fock type space and its application to quantum Hamiltonian and symmetry operators in case of quantum integrable spatially many- and one-dimensional dynamical systems. As examples, we have studied in detail the factorized structure of Hamiltonian operators, describing such quantum integrable spatially many- and one-dimensional models as generalized oscillatory, Calogero-Sutherland, Coulomb type and nonlinear Schr\"{o}dinger dynamical systems of spinless bose-particles.

quant-ph↗

arXiv2014

Effective degrees of freedom in QCD thermodynamics

An effective model reproducing the equation of state of hadronic matter as obtained in recent lattice QCD simulations and from hadron resonance gas data is presented. The hadronic phase is described by means of an extended Mott-Hagedorn resonance gas while the QGP phase is described by the extended PNJL model. The dissociation of hadrons is obtained by including the state dependent hadron resonance width. The model gives a quantitative estimate for partial fractions of hadronic and partonic degrees of freedom above $T_c$.

nucl-th↗

arXiv2013

An effective model of QCD thermodynamics

A combined effective model reproducing the equation of state of hadronic matter as obtained in recent lattice QCD simulations is presented. The model reproduces basic physical characteristics encountered in dense hadronic matter in the quark-gluon plasma (QGP) phase and the lower temperature hadron resonance gas phase. The hadronic phase is described by means of an extended Mott-Hagedorn resonance gas while the QGP phase is described by the extended PNJL model. The dissociation of hadrons is obtained by including the state dependent hadron resonance width.

nucl-th↗

arXiv2009

Charmonium suppression at RHIC and SPS: a hadronic baseline

A kinetic equation approach is applied to model anomalous J/psi suppression at RHIC and SPS by absorption in a hadron resonance gas which successfully describes statistical hadron production in both experiments. The puzzling rapidity dependence of the PHENIX data is reproduced as a geometric effect due to a longer absorption path for J/psi production at forward rapidity.

hep-ph↗

arXiv2008

Perspectives on heavy-quarkonium production at the LHC

We summarise the perspectives on heavy-quarkonium production at the LHC, both for proton-proton and heavy-ion runs, as emanating from the round table held at the HLPW 2008 Conference. The main topics are: present experimental and theoretical knowledge, experimental capabilities, open questions, recent theoretical advances and potentialities linked to some new observables.

hep-ph↗

arXiv2003

Analysis of the freeze-out parameters for RHIC, SPS and AGS based on ${ {dE_{T}} \over {dη}} / {dN_{ch} \over {dη}}$ ratio measurements

The ratio ${dE_{T} \over {dη}} / {dN_{ch} \over {dη}}$ is analyzed in the framework of a single-freeze-out thermal hadron gas model. Decays of hadron resonances are taken into account in evaluations of this ratio. The predictions of the model at the freeze-out parameters, established previously from observed particle yields, agree very well with the ratio measured at RHIC, SPS and AGS.

hep-ph↗

arXiv2002

Evaluations of freeze-out parameters from ${dE_{T} \over {dη}} / {dN_{ch} \over {dη}}$ ratio measured at RHIC and SPS

In the presented paper curves of constant $ε_{T} / n_{charged}$ are calculated in $T-μ_{B}$ plane, in the framework of a single-freeze-out thermal hadron gas model. The ratio is a theoretical equivalent of ${dE_{T} \over {dη}}_{\mid η=0} / {dN_{ch} \over {dη}}_{\mid η=0}$ measured at RHIC and SPS. In both $ε_{T}$ and $n_{charged}$ decays of hadron resonances are taken into account. The freeze-out temperature $T_{f.o.}=156_{-11}^{+14}$ MeV is obtained for RHIC, whereas $T_{f.o.}=134-140$ MeV is evaluated for SPS.

hep-ph↗