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High-energy-density electron-positron pair plasma production and its dynamics in a thin foil illuminated by two counter-propagating laser pulses are investigated through multi-dimensional particle-in-cell simulations. We compare the…

Plasma Physics · Physics 2020-07-07 W. Y. Liu , W. Luo , T. Yuan , J. Y. Yu , M. Chen , Z. M. Sheng

We calculate the cross sections for the production of one and more electron-positron pairs due to the strong electromagnetic fields in relativistic heavy ion collisions. Using the generating functional of fermions in an external field we…

Nuclear Theory · Physics 2009-10-30 Adrian Alscher , Kai Hencken , Dirk Trautmann , Gerhard Baur

The production of hadronic final states in electron-positron or electron-hadron collisions is induced predominantly by quasi-real photons that were emitted off incoming leptons. In these processes, the photon either enters directly or…

High Energy Physics - Phenomenology · Physics 2026-02-27 Thomas Gehrmann , Peter Meinzinger

Energetic spin-polarized positrons are extremely demanded for forefront researches, such as $e^- e^+$ collider physics, but making compact positron sources is still very challenging. Here we put forward an efficient scheme of trapping and…

Plasma Physics · Physics 2020-11-03 Wei-Yuan Liu , Kun Xue , Feng Wan , Min Chen , Jian-Xing Li , Feng Liu , Su-Ming Weng , Zheng-Ming Sheng , Jie Zhang

The Schwinger mechanism of electron-positron pair production in the presence of strong external electric fields is analyzed numerically for the case of one- and two-dimensional field configurations where the external field depends both on…

High Energy Physics - Theory · Physics 2016-09-28 I. A. Aleksandrov , G. Plunien , V. M. Shabaev

Electrons colliding with spatially fixed ions in strong laser fields are investigated by solving the time-dependent Schr\"odinger equation. Considering first simple one-dimensional model systems, the mechanisms and energy spectra of fast…

Atomic Physics · Physics 2015-10-28 S. Bauch , M. Bonitz

The problem of electron-proton scattering is handed over both the elastic and inelastic scattering. Two models are presented in this sense. The first, depends on the multi photon exchange ladder diagram, where the transition matrix is…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. T. Hussein , R. Elmualed , N. M. Hassan

Recently much attention has being attracted to the problem of limitations on the attainable intensity of high power lasers [A.M. Fedotov {\it et al.} Phys. Rev. Lett. \textbf{105}, 080402 (2010)]. The laser energy can be absorbed by…

Plasma Physics · Physics 2011-03-23 E. N. Nerush , I. Yu. Kostyukov , A. M. Fedotov , N. B. Narozhny , N. V. Elkina , H. Ruhl

This paper studies the interaction of laser-driven $\gamma$-photons and high energy charged particles with high-Z targets through Monte-Carlo simulations. The interacting particles are taken from particle-in-cell simulations of the…

We report on the laser-driven generation of purely neutral, relativistic electron-positron pair plasmas. The overall charge neutrality, high average Lorentz factor ($\gamma_{e/p} \approx 15$), small divergence ($\theta_{e/p} \approx 10 -…

Production of electron-positron pairs in the collision of a high-energy photon with a high-intensity few-cycle laser pulse is studied. By utilizing the frameworks of laser-dressed spinor and scalar quantum electrodynamics, a comparison…

High Energy Physics - Phenomenology · Physics 2016-07-27 M. J. A. Jansen , J. Z. Kamiński , K. Krajewska , C. Müller

We consider the prompt photon production at modern high energy colliders in the framework of $k_T-$factorization approach. We compare our theoretical predictions with recent experimental data at HERA and Tevatron, empahasizing the…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. V. Lipatov , N. P. Zotov

Photon pairs, highly entangled in polarization have been generated under femtosecond laser pulse excitation by a type I crystal source, operating in a single arm interferometric scheme. The relevant effects of temporal walk-off existing in…

Quantum Physics · Physics 2009-11-13 M. Barbieri , C. Cinelli , F. De Martini , P. Mataloni

The twisted magnetospheres of magnetars must sustain a persistent flow of electron-positron plasma. The flow dynamics is controlled by the radiation field around the hot neutron star. The problem of plasma motion in the self-consistent…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Andrei M. Beloborodov

Electron-positron pair production by the superposition of two laser pulses with different frequencies and amplitudes is analyzed as a particular realization of the assisted dynamic Schwinger effect. It is demonstrated that, within a…

Quantum Physics · Physics 2016-03-23 A. D. Panferov , S. A. Smolyansky , A. Otto , B. Kaempfer , D. Blaschke , L. Juchnowski

QED-effects are known to occur in a strong laser pulse interaction with a counter-propagating electron beam, among these effects being electron-positron pair creation. We discuss the range of laser pulse intensities of J > 5*10^22 W/cm2…

Plasma Physics · Physics 2010-11-11 Igor V. Sokolov , Natalia M. Naumova , John A. Nees , Gerard A. Mourou

Singlet fission, the molecular process through which photons are effectively converted into pairs of lower energy triplet excitons, holds promise as a means of boosting photovoltaic device efficiencies. In the preceding article of this…

Materials Science · Physics 2017-05-12 Roel Tempelaar , David R. Reichman

Pair creation by a photon in an oriented crystal is considered in a frame of the quasiclassical operator method, which includes processes with polarized particles. Under some quite generic assumptions the general expression is derived for…

High Energy Physics - Phenomenology · Physics 2008-11-26 V. N. Baier , V. M. Katkov

Pair production due to the Schwinger mechanism is modeled in a self-consistent approach taking into account the backreaction of the created particles on the field. The model uses the Boltzmann kinetic equation for the electrons and…

Plasma Physics · Physics 2011-03-09 Alexander Tarasenko

The nonperturbative regime of electron-positron pair creation by a relativistic proton beam colliding with a highly intense bichromatic laser field is studied. The laser wave is composed of a strong low-frequency and a weak high-frequency…

High Energy Physics - Phenomenology · Physics 2014-09-09 Sven Augustin , Carsten Müller
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