A Scientific Analysis of the Preprint arXiv:1301.1828v1 [nucl-th]

Bugaev, K. A.; Oliinychenko, Dmytro; Sorin, Alexander

doi:10.15407/ujpe58.10.0939

Cited by 48 publications

(208 citation statements)

References 16 publications

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Mentioning

196

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“…Note that a similar (and a somewhat stronger) rapid change in the number of effective degrees of freedom is observed in the most recent (former) version of the hadron resonance gas model [7,8] ( [5,12]). …”

Section: Fig 1: Energy Dependence Of Entropy Density (Circles) and Tsupporting

confidence: 55%

“…The recent extensions [5][6][7][8] of the hadron resonance gas model [9][10][11][12][13] provide us with the most successful description of available hadronic multiplicities measured in heavy-ion collisions at AGS, SPS, and RHIC energies. The global values of χ 2 /dof 1.16 and χ 2 /dof 1.06 achieved, respectively, in [6] and [7] for 111 independent multiplicity ra- from 586 to 531 MeV [6].…”

Section: Fig 1: Energy Dependence Of Entropy Density (Circles) and Tmentioning

confidence: 99%

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Thermodynamically anomalous regions as a mixed phase signal

Bugaev

Ivanytskyi

Oliinychenko

et al. 2015

Phys. Part. Nuclei Lett.

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Abstract. Using the most advanced model of the hadron resonance gas we reveal, at chemical freeze-out, remarkable irregularities such as an abrupt change of the effective number of degrees of freedom and plateaus in the collision-energy dependence of the entropy per baryon, total pion number per baryon, and thermal pion number per baryon at laboratory energies 6.9-11.6 AGeV. On the basis of the generalized shock adiabat model we show that these plateaus give evidence for the thermodynamic anomalous properties of the mixed phase at its boundary to the quark-gluon plasma (QGP). A new signal for QGP formation is suggested and justified. PACS:25.75.Nq, 25.75.Dw

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Section: Fig 1: Energy Dependence Of Entropy Density (Circles) and Tsupporting

confidence: 55%

Section: Fig 1: Energy Dependence Of Entropy Density (Circles) and Tmentioning

confidence: 99%

Thermodynamically anomalous regions as a mixed phase signal

Bugaev

Ivanytskyi

Oliinychenko

et al. 2015

Phys. Part. Nuclei Lett.

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“…In doing so, in fact, we match an ensemble of all string shapes of fixed L to a mean elongated cylinder, which according to the original Fisher idea [10] and the results of the Hills and Dales Model (HDM) [11,12] represents a sum of all surface deformations of such a bag. The last equation allows one to determine the T -dependence of bag surface tension as…”

mentioning

confidence: 99%

Physical mechanism of the (tri)critical point generation

Bugaev

Ivanytskyi

Nikonov³

et al. 2012

Phys. Atom. Nuclei

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Abstract. We discuss some ideas resulting from a phenomenological relation recently declared between the tension of string connecting the static quark-antiquark pair and surface tension of corresponding cylindrical bag. This relation analysis leads to the temperature of vanishing surface tension coefficient of the QGP bags at zero baryonic charge density as T σ = 152.9±4.5MeV. We develop the view point that this temperature value is not a fortuitous coincidence with the temperature of (partial) chiral symmetry restoration as seen in the lattice QCD simulations. Besides, we argue that T σ defines the QCD (tri)critical endpoint temperature and claim that a negative value of surface tension coefficient recently discovered is not a sole result, but should also exist in ordinary liquids at the supercritical temperatures.

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“…It is the model developed in [4,[7][8][9][10]. The hadron interaction is taken into account via the hardcore repulsion whose radii have different values for pions , kaons , other mesons and baryons .…”

Section: Hardon Resonance Gas Modelmentioning

confidence: 99%

“…[6] are consistent with = 1. In order to resolve the latter problem, we apply the most successful version of the HRGM with multicomponent hard-core repulsion [4,[7][8][9][10] to describe 111 independent hadron yield ratios measured at 14 values of the center of mass collision energy √ in the interval from 2.7 GeV to 200 GeV.…”

Section: Introductionmentioning

confidence: 99%

Strangeness Enhancement at the Hadronic Chemical Freeze-Out

Sagun¹,

Oliinychenko²,

Bugaev³

et al. 2014

Ukr. J. Phys.

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PACS 25.75.Nq The chemical freeze-out of hadrons created in the high energy nuclear collisions is studied within the realistic version of the hadron resonance gas model. The chemical non-equilibrium of strange particles is accounted via the usual factor which gives us an opportunity to perform a high quality fit with 2 / ≃ 63.5/55 ≃ 1.15 of the hadronic multiplicity ratios measured from the low AGS to the highest RHIC energies. In contrast to previous findings, at low energies we observe the strangeness enhancement instead of a suppression. In addition, the performed fit allows us to achieve the highest quality of the Strangeness Horn description with 2 / = 3.3/14. For the first time the top point of the Strangeness Horn is perfectly reproduced, which makes our theoretical horn as sharp as an experimental one. However, the fit approach does not sizably improve the description of the multi-strange baryons and antibaryons. Therefore, an apparent deviation of multi-strange baryons and antibaryons from chemical equilibrium requires further explanation.

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A Scientific Analysis of the Preprint arXiv:1301.1828v1 [nucl-th]

Abstract: Below we analyze the 'critic' statements made in the Preprint arXiv:1301.1828v1 [nucl-th]. The doubtful scientific argumentation of the authors of the Preprint arXiv:1301.1828v1 [nucl-th] is also discussed.

Cited by 48 publications

References 16 publications

Thermodynamically anomalous regions as a mixed phase signal

Thermodynamically anomalous regions as a mixed phase signal

Physical mechanism of the (tri)critical point generation

Strangeness Enhancement at the Hadronic Chemical Freeze-Out

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