An example of the interplay of nonextensivity and dynamics in the description of QCD matter

Rożynek, J.; Wilk, G.

doi:10.1140/epja/i2016-16294-7

Cited by 17 publications

(12 citation statements)

References 32 publications

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“…(51) with respect to µ Q and T, after performing the momentum integral. Later on, this gap was studied in detail in the search for physical significance [81,82].…”

Section: Non-extensive Thermodynamics Of Thermofractalsmentioning

confidence: 99%

Fractal Structures of Yang–Mills Fields and Non-Extensive Statistics: Applications to High Energy Physics

Deppman

Megías

Menezes

2020

Physics

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In this work, we provide an overview of the recent investigations on the non-extensive Tsallis statistics and its applications to high energy physics and astrophysics, including physics at the Large Hadron Collider (LHC), hadron physics, and neutron stars. We review some recent investigations on the power-law distributions arising in high energy physics experiments focusing on a thermodynamic description of the system formed, which could explain the power-law behavior. The possible connections with a fractal structure of hadrons is also discussed. The main objective of the present work is to delineate the state-of-the-art of those studies and show some open issues that deserve more careful investigation. We propose several possibilities to test the theory through analyses of experimental data.

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“…(51) with respect to µ Q and T, after performing the momentum integral. Later on, this gap was studied in detail in the search for physical significance [81,82].…”

Section: Non-extensive Thermodynamics Of Thermofractalsmentioning

confidence: 99%

Fractal Structures of Yang–Mills Fields and Non-Extensive Statistics: Applications to High Energy Physics

Deppman

Megías

Menezes

2020

Physics

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“…(15) has exactly same expression f q (zero baryon density ). Note that, extension of the EQPM, while incoporating the non-extensive quantum statistics, has recently been done by Rozynek and Wilk [41]. We intend to utilize these non-extensive quasi-particle distribution in the context of collective plasma excitations of hot QCD medium in near future.…”

Section: A Isotropic Hot Qcd Mediummentioning

confidence: 99%

Collective excitations of hot QCD medium in a quasiparticle description

2017

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Collective excitations of a hot QCD medium are the main focus of the present article. The analysis is performed within semi-classical transport theory with isotropic and anisotropic momentum distribution functions for the gluonic and quark-antiquark degrees of freedom that constitutes the hot QCD plasma. The isotropic/equilibrium momentum distributions for gluons and quarks are based on a recent quasi-particle description of hot QCD equations of state. The anisotropic distributions are just the extensions of isotropic ones by stretching or squeezing them in one of the directions. The hot QCD medium effects in the model adopted here enter through the effective gluon and quark fugacities along with non-trivial dispersion relations leading to an effective QCD coupling constant. Interestingly, with these distribution functions the tensorial structure of the gluon polarization tensor in the medium turned out to be similar to the one for the non-interacting ultra-relativistic system of quarks/antiquarks and gluons . The interactions mainly modify the Debye mass parameter and , in turn, the effective coupling in the medium. These modifications have been seen to modify the collective modes of the hot QCD plasma in a significant way.

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“…Refs. [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41] and references therein, with a particular focus on the study of imprints of the superstatistics on the particle production, using a particular version, the so-called Tsallis statistics [42]. Its use in the context of the computation of the rapidity distribution profile for the stopping in heavy ion collisions has been recently questioned in Ref.…”

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confidence: 99%

Effects of Superstatistics on the Location of the Effective QCD Critical End Point

et al. 2019

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Effects of the partial thermalization during the chiral symmetry restoration at the finite temperature and quark chemical potential are considered for the position of the critical end point in an effective description of the QCD phase diagram. We find that these effects cause the critical end point to be displaced toward larger values of the temperature and lower values of the quark chemical potential, as compared to the case where the system can be regarded as completely thermalized. These effects may be important for relativistic heavy ion collisions, where the number of subsystems making up the whole interaction volume can be linked to the finite number of participants in the reaction.

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An example of the interplay of nonextensivity and dynamics in the description of QCD matter

Cited by 17 publications

References 32 publications

Fractal Structures of Yang–Mills Fields and Non-Extensive Statistics: Applications to High Energy Physics

Fractal Structures of Yang–Mills Fields and Non-Extensive Statistics: Applications to High Energy Physics

Collective excitations of hot QCD medium in a quasiparticle description

Effects of Superstatistics on the Location of the Effective QCD Critical End Point

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