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• Several versions

### Chiral Magnetic Effect in the Dirac-Heisenberg-Wigner formalism

Berényi, Dániel, Lévai, Péter
arXiv.org, May 11, 2018 [Peer Reviewed Journal]

• Several versions

### Pair production at the edge of the QED flux tube

Berényi, Dániel
Physics Letters B, 26 April 2017 [Peer Reviewed Journal]

• Several versions

### Chiral Magnetic Effect in the Dirac-Heisenberg-Wigner formalism

Berényi, Dániel, Lévai, Péter
arXiv.org, Dec 16, 2017

• Several versions

### Simulation of Pair Production in Extreme Strong EM Fields

Berényi, Dániel, Lévai, Péter, Skokov, Vladimir
arXiv.org, May 5, 2012 [Peer Reviewed Journal]

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### Testing and improving shear viscous phase space correction models

Damodaran, Mridula, Molnar, Denes, Berényi, Dániel
arXiv.org, Jul 4, 2017
© ProQuest LLC All rights reserved, Engineering Database, Publicly Available Content Database, ProQuest Engineering Collection, ProQuest Technology Collection, ProQuest SciTech Collection, Materials Science & Engineering Database, ProQuest Central (new), ProQuest Central Korea, SciTech Premium Collection, Technology Collection, ProQuest Central Essentials, ProQuest One Academic, Engineering Collection (ProQuest)
Available
Title: Testing and improving shear viscous phase space correction models
Author: Damodaran, Mridula; Molnar, Denes; Berényi, Dániel
Contributor: Berényi, Dániel (pacrepositoryorg)
Subject: Accuracy ; Conversion ; Space Density ; Relaxation Time ; Viscous Fluids ; Kinetic Theory ; Computer Simulation ; Shear Viscosity
Description: Comparison of hydrodynamic calculations with experimental data inevitably requires a model for converting the fluid to particles. In this work, nonlinear $$2\to 2$$ kinetic theory is used to assess the overall accuracy of various shear viscous fluid-to-particle conversion models, such as the quadratic Grad corrections, the Strickland-Romatschke (SR) ansatz, self-consistent shear corrections from linearized kinetic theory, and the correction from the relaxation time approach. We test how well the conversion models can reconstruct, using solely the hydrodynamic fields computed from the transport, the phase space density for a massless one-component gas undergoing a 0+1D longitudinal boost-invariant expansion with approximately constant specific shear viscosity in the range $$\sim 0.03 \le \eta/s \le \sim 0.2$$. In general we find that at early times the SR form is the most accurate, whereas at late times or for small $$\eta/s\sim 0.05$$ the self-consistent corrections from kinetic theory...
Is part of: arXiv.org, Jul 4, 2017
Identifier: 2331-8422 (E-ISSN)
• Several versions

### Towards scalable pattern-based optimization for dense linear algebra

Berényi, Dániel, Leitereg, András, Lehel, Gábor
arXiv.org, May 11, 2018 [Peer Reviewed Journal]

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### Describing pair production in inhomogeneous external fields with the Dirac-Heisenberg-Wigner formalism

Berényi Dániel, Varró Sándor, Lévai Péter, Skokov Vladimir V
EPJ Web of conferences, 01 January 2014, Vol.78, p.03001 [Peer Reviewed Journal]
Directory of Open Access Journals (DOAJ)
Available
Title: Describing pair production in inhomogeneous external fields with the Dirac-Heisenberg-Wigner formalism
Author: Berényi Dániel; Varró Sándor; Lévai Péter; Skokov Vladimir V
Subject: Physics
Description: In this contribution we present results on pair production from vacuum in QED in case of inhomogeneous external electric fields. The central tool of our description is the relativistic one particle single-time Wigner-function, that describes the evolution of the e+e− densities in phase-space. We compare the influence of homogeneous and inhomogeneous external fields, and find that the inhomogeneity near the Compton-scale increases particle production proportionally to the duration of the electric pulse. We also find, that when the inhomogeneity is restricted to a single direction, a significant component of the pair yield originates from the edge or surface where the electric field gradients are large, in agreement with the prediction of Heisenberg.
Is part of: EPJ Web of conferences, 01 January 2014, Vol.78, p.03001
Identifier: 2100-014X (E-ISSN); 10.1051/epjconf/20147803001 (DOI)
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### Anomalous baryon production in heavy ion collisions at LHC energies

Berényi, Dániel, Pásztor, Attila, Skokov, Vladimir, Lévai, Péter
Cornell University
Available
Title: Anomalous baryon production in heavy ion collisions at LHC energies
Author: Berényi, Dániel; Pásztor, Attila; Skokov, Vladimir; Lévai, Péter
Subject: High Energy Physics - Phenomenology ; Nuclear Theory
Description: In ultrarelativistic heavy ion collisions the baryon-meson ratio is not fully understood in the intermediate-to-high transverse momentum region. Although quark coalescence methods combined with jet fragmentation yield results close to the experimental data, some tendencies are not reproduced and require further investigation. We propose a new channel, namely extra quark-antiquark and diquark-antidiquark pair production from coherent gluon field created in the early stage of heavy ion collisions. This process is described quantitatively by the time-dependent Schwinger-mechanism. The extra diquark-quark coalescence yields are able to explain the measured anomalous baryon production. Comment: 7 pages, 9 figures
Identifier: 1208.0448 (ARXIV ID)
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### Pair production at the edge of the QED flux tube

Berényi, Dániel, Varró, Sándor, Skokov, Vladimir, Lévai, Péter
arXiv.org, Dec 30, 2013
© ProQuest LLC All rights reserved, Engineering Database, Publicly Available Content Database, ProQuest Engineering Collection, ProQuest Technology Collection, ProQuest SciTech Collection, Materials Science & Engineering Database, ProQuest Central (new), ProQuest Central Korea, SciTech Premium Collection, Technology Collection, ProQuest Central Essentials, ProQuest One Academic, Engineering Collection (ProQuest)
Available
Title: Pair production at the edge of the QED flux tube
Author: Berényi, Dániel; Varró, Sándor; Skokov, Vladimir; Lévai, Péter
Contributor: Lévai, Péter (pacrepositoryorg)
Subject: Time Dependence ; Electric Fields ; Pair Production ; Inhomogeneity ; Ionic Collisions
Description: We investigate the process of Abelian pair production in the presence of strong inhomogeneous and time-dependent external electric fields. The spatial dependence of the external field is motivated by a non-Abelian color flux tube in heavy-ion collisions. We show that the inhomogeneity significantly increase the particle yield compared to that in the commonly used models with a constant and homogeneous field. Moreover our results indicate that in contrast to the latter, most of the particles are produced at the interface of the field profile in accordance with Heisenberg's prediction.
Is part of: arXiv.org, Dec 30, 2013
Identifier: 2331-8422 (E-ISSN)
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### Pair production at the edge of the QED flux tube

Berényi, Dániel, Varró, Sándor, Skokov, Vladimir V., Lévai, Péter
Cornell University
Available
Title: Pair production at the edge of the QED flux tube
Author: Berényi, Dániel; Varró, Sándor; Skokov, Vladimir V.; Lévai, Péter
Subject: High Energy Physics - Phenomenology
Description: We investigate the process of Abelian pair production in the presence of strong inhomogeneous and time-dependent external electric fields. The spatial dependence of the external field is motivated by a non-Abelian color flux tube in heavy-ion collisions. We show that the inhomogeneity significantly increase the particle yield compared to that in the commonly used models with a constant and homogeneous field. Moreover our results indicate that in contrast to the latter, most of the particles are produced at the interface of the field profile in accordance with Heisenberg's prediction. Comment: 6 pages, 6 figures
Identifier: 1401.0039 (ARXIV ID)