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Dr Airton Deppman07/06/2023, 09:05
This talk provides an in-depth analysis of the emergence of Tsallis Statistics through fractal structures in high-energy collisions in the context of high-energy physics and hadron physics. The self-similarity in the parton structure resulting from the scale properties of the Callan-Symanzik Equation is examined, demonstrating the recursive relations that allow for the emergence of Tsallis...
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Dr Péter Ván (Wigner RCP, Budapest)07/06/2023, 09:40
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Győző Kovács (Wigner RCP)07/06/2023, 10:30
Finite-size effects are usually taken into account in effective field theoretical models via constraints of the momentum space. This could be either discretization due to the finite spatial extent with modes determined by the boundary condition or a simple low momentum cutoff. We implemented both scenarios by applying different boundary conditions and we studied, how the treatment of the...
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Peter Kovacs (Wigner RCP)07/06/2023, 10:55
The phase diagram of QCD is investigated by varying number of colors N_c within a Polyakov loop quark-meson chiral model. In particular, our attention is focused on the critical point(s); the critical point present for N_c =3 moves toward the μq-axis and disappears as soon as the number of color is increased. Yet, a distinct critical point emerges along the temperature axis for N_c =53 and...
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Guy Paic07/06/2023, 11:20
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David Blaschke, Gergely Barnafoldi (Wigner RCP RMI of the Hungarian Academy of Sciences)07/06/2023, 11:55
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Stefan Evans07/06/2023, 14:00
We survey advances in EM vacuum structure building bridges between QED and QCD: High-precision vacuum birefringence experimental environments allow the probing of QED and are also sensitive to virtual axions, particles invented to rescue parity symmetry in strong interactions/QCD. Currently we explore the possible effects of short-lived or confined axions, which otherwise escape experiments...
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Gabor Biro (MTA Wigner FK)07/06/2023, 14:50
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Prof. Sándor Varró (Wigner RCP, Budapest)07/06/2023, 15:15
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Seweryn Kowalski07/06/2023, 16:00
The research program of the NA61/SHINE Collaboration covers a wide range of hadronic physics in the CERN SPS energy range (beam momentum 13A - 158A GeV/c), encompassing measurements of hadron-hadron, hadron-nucleus, and nucleus-nucleus collisions. Data are analyzed better to understand the properties of hot and dense nuclear matter. This talk will present the energy dependence of quantities...
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Will Price07/06/2023, 16:30
We discuss the concept of an upper limit to the electromagnetic force and its effect on charged particle dynamics. We explore two examples: the Born-Infeld (BI) theory of electromagnetism providing a limiting field – and the limiting acceleration inherent to the
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Eliezer-Ford-O’Connell (EFO) formulation of the radiation reaction force. We also explore the Euler-Heisenberg-Schwinger effective... -
Gergely Barnafoldi (Wigner RCP RMI of the Hungarian Academy of Sciences)07/06/2023, 17:00
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Andrew Steinmetz08/06/2023, 09:00
We extrapolate today's magnetic properties of the Universe back to the electron-positron (e+e-) era to describe novel phenomena and self-magnetization. The cosmic e+e- plasma is the most recent era which could seed the residual large-scale extragalactic magnetic fields we see in the Universe today. This plasma epoch existed between temperatures 2 MeV > T > 0.02 MeV. We show that Big Bang...
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Christopher Grayson08/06/2023, 09:35
The big-bang nucleo-synthesis (BBN) occurs in a relatively dense electron-positron e-ē plasma environment, kept in thermal equilibrium by a very dense photon γ background. We describe and evaluate the static and dynamic electromagnetic properties of this unique physical environment. The collisional thermal damping/relaxation rate in the plasma is found by calculating the net electron-positron...
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Martin Formanek08/06/2023, 10:30
In this talk the “Flying Focus” (FF) regime will be introduced as a novel method of spatiotemporal laser pulse shaping [1,2]. In the FF regime, the intensity peak formed by the moving focal point can travel at any velocity, independent of the laser group velocity, over distances much longer than a Rayleigh range. This enables co-propagation of an ultra-relativistic particle beam with the laser...
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Ms Anna Horvath08/06/2023, 11:10
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Balázs Endre Szigeti (Wigner FK)08/06/2023, 11:35
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MALLICK Neelkamal (Indian Inst. Tech., Indore)08/06/2023, 12:00
Abstract: In recent years, deep learning has found many applications in the field of
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high energy heavy-ion collisions. Deep learning technique provides a data-driven statistics based model which can help map the input and output observables. In such cases
the mapping function is difficult to formulate or is usually unknown. In this work, we
explore the prospects of using deep learning... -
Constantino Tsallis08/06/2023, 14:00
Plasmas typically involve strong nonlocal space and/or time correlations between their constitutive elements. As a natural consequence, the thermodynamically appropriate entropy typically is nonadditive, in contrast with those systems where basically local correlations dominate and are therefore satisfactorily described by the Boltzmann-Gibbs (BG) statistical mechanics, grounded on the...
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Xu-Guang Huang08/06/2023, 14:45
Chiral plasmas exist in various environments, noticeably, the quark gluon plasma in heavy ion collisions and the electroweak plasma in early Universe and in supernovae. We discuss the possible new instabilities, which we call the chiral magnetovortical instability and chiral shear instability, that may emerge in chiral plasmas induced by the chiral vortical effect and chiral magnetic effect....
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Wolfgang Schleich (Universität Ulm)08/06/2023, 15:40
Landau–Zener-transitions are an essential tool in atom optics, and in particular, in accelerated optical lattices. It is amazing that despite its simplicity, the derivation of the well-known Landau-Zener-formula for the transition probability amplitude is rather involved, independent of the approach pursued. An integration in the complex plane, the asymptotic expansion of the parabolic...
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Ludwik Turko08/06/2023, 16:20
The outcomes of any given measurement of any scientific observables can be considered random variables. The crucial point is to find and apply statistical methods that enable a reasonable inference of measured observables and scientific models used to describe phenomena of interest. The statistical inference, however, is contingent on the notion of probability and how this notion is applied to...
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Prof. Johann Rafelski (University of Arizona)09/06/2023, 09:00
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Tamas Biro (Wigner RCP)09/06/2023, 09:45
A review of the project NAPLIFE: Nanoplasmonic Laser Initiated Fusion Experiment. Aims, project structure and first nano-fabrication and spectroscopy results will be presented.
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Prof. Laszlo Csernai (University of Bergen)09/06/2023, 10:30
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Norbert Kroó09/06/2023, 11:05
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Istvan Papp (Wigner FK)09/06/2023, 11:50
Recently laser induced fusion with simultaneous volume ignition, a spin-off from relativistic heavy ion collisions was proposed [1]. This requires two sided irradiation configuration, experiments with similar setups were proved to be successful [3]. In our case, implanted nano antennas regulated and amplified the light absorption in the fusion target [2]. We studied recently the resilience of...
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Antal Jakovac (Wigner RCP, Department of Computational Sciences)09/06/2023, 14:00
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Friedemann Queisser09/06/2023, 14:30
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Dénes Sexty09/06/2023, 15:10
Lattice simulations of non-zero density QCD introduce the so-called sign problem, which invalidates importance sampling methods. We use the Complex Langevin equation (CLE) to circumvent the sign problem. Recent results regarding the phase diagram and thermodynamics of QCD using Complex Langevin simulations will be reviewed. We show recent theoretical results about the understanding and...
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Willibald Plessas
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Wolfgang Schleich
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Johann Rafelski
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