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Electron-positron pair production in low-energy collisions of heavy nuclei is considered beyond the monopole approximation. The calculation method is based on the numerical solving of the time-dependent Dirac equation with the full…

Atomic Physics · Physics 2019-08-20 I. A. Maltsev , V. M. Shabaev , R. V. Popov , Y. S. Kozhedub , G. Plunien , X. Ma , Th. Stöhlker

In this paper we consider the process of "subthreshold" electron-positron pairs creation in the region of laser conversion. The total number of positrons and their distribution are obtained. This phenomena is offered for use as a good test…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. A. Kochanov , S. I. Polityko

A method for the generation of ultrarelativistic electron beams with high spin polarization is put forward, where a tightly-focused linearly-polarized ultraintense laser pulse interacts with a nonprepolarized transverse-size-tailored solid…

Plasma Physics · Physics 2024-06-11 Xiaofei Shen , Zheng Gong , Karen Z. Hatsagortsyan , Christoph H. Keitel

The mechanism of pair creation in electrosphere of compact astrophysical objects such as quark stars or neutron stars is revisited, paying attention to evaporation of electrons and acceleration of electrons and positrons, previously not…

High Energy Astrophysical Phenomena · Physics 2025-02-19 Mikalai Prakapenia , Gregory Vereshchagin

High laser intensities enable the production of electron-positron pairs from bright gamma rays passing through strong fields. Potentially the most promising approach for all-optical experiments in the near term uses dense but higher…

Plasma Physics · Physics 2026-02-02 Christopher Arran , Stuart Morris , Christopher P. Ridgers

Generation of arbitrarily spin polarized muon pairs is investigated via polarized $e^-e^+$ collision. We calculate the fully spin-resolved cross section ${\rm d}\sigma_{e^-e^+\rightarrow \mu^-\mu^+}$ and utilize the Monte Carlo method of…

High Energy Physics - Phenomenology · Physics 2022-06-29 Zhi-Wei Lu , Qian Zhao , Feng Wan , Bo-Chao Liu , Yong-Sheng Huang , Zhong-Feng Xu , Jian-Xing Li

Using semiclassical WKB-methods, we calculate the rate of electron-positron pair-production from the vacuum in the presence of two external fields, a strong (space- or time-dependent) classical field and a monochromatic electromagnetic…

Plasma Physics · Physics 2015-09-09 Hagen Kleinert , She-Sheng Xue

The non-perturbative electron-positron pair production in time-dependent electric fields is investigated. The quantum kinetic formalism is employed in order to calculate the electron density for various field configurations. The…

High Energy Physics - Phenomenology · Physics 2012-12-06 Christian Kohlfürst

This work covers electron positron pair production in spatially homogeneous electric (and magnetic) fields. Different field configurations are looked at in order to study various phenomena including multiphoton pair production,…

Plasma Physics · Physics 2017-01-19 Alexander Blinne

A scheme to generate highly collimated $\gamma$-ray pulse is proposed for the production of muon and electron pairs in $\gamma-\gamma$ collider. The $\gamma$-ray pulse, with high conversion efficiency, can be produced as the result of…

Plasma Physics · Physics 2017-12-27 J. Q. Yu , R. H. Hu , Z. Gong , A. Ting , Z. Najmudin , D. Wu , H. Y. Lu , W. J. Ma , X. Q. Yan

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 process of electron-positron pair production by two photons in a strong magnetic field has been studied. The process kinematics is considered, and the probability amplitude for arbitrary polarizations of particles is found. The…

High Energy Physics - Phenomenology · Physics 2014-09-18 M. Dyachenko , O. Novak , R. Kholodov

Resonant e+e- pair production by an electron in a magnetic field near the process threshold has been analytically studied. Using the Nikishov's theorem an estimation of the number of events has been made in the magnetic field equivalent to…

Plasma Physics · Physics 2015-06-11 O. P. Novak , R. I. Kholodov

The optical theorem is applied to the process of electron-positron pair creation in the superposition of a nuclear Coulomb and a strong laser field. We derive new representations for the total production rate as two-fold integrals, both for…

Atomic Physics · Physics 2009-11-11 A. I. Milstein , C. Müller , K. Z. Hatsagortsyan , U. D. Jentschura , C. H. Keitel

Production of electron-positron pairs from the quantum vacuum polarized by the superposition of a strong and a perturbative oscillating electric-field mode is studied. Our outcomes rely on a nonequilibrium quantum field theoretical…

High Energy Physics - Phenomenology · Physics 2014-12-09 Ibrahim Akal , Selym Villalba-Chávez , Carsten Müller

We consider scattering of a photon on a short intense laser pulse at high energy. We argue that for ultra-short laser pulses the interaction is coherent over the entire length of the pulse. At low pulse intensity $I$ the total cross section…

High Energy Physics - Phenomenology · Physics 2014-11-20 Kirill Tuchin

We study electron-positron pair production in polar caps of energetic pulsars to determine the maximum multiplicity of pair plasma a pulsar can produce under the most favorable conditions. This paper complements and updates our study of…

High Energy Astrophysical Phenomena · Physics 2019-01-23 A. N. Timokhin , A. K. Harding

We investigate electron-positron pair creation from the vacuum in a pulsed electric background field. Employing the Sauter-type pulsed field $E(t)=E_0 {\rm sech}^2 (t/\tau)$ with height $E_0$ and width $\tau$, we demonstrate explicitly the…

High Energy Physics - Phenomenology · Physics 2014-07-30 Hidetoshi Taya , Hirotsugu Fujii , Kazunori Itakura

The results concerning the $e^+e^-$ production in peripheral highly relativistic heavy-ion collisions presented in a recent paper by Baltz {\em{et al.}} are rederived in a very straightforward manner. It is shown that the solution of the…

High Energy Physics - Phenomenology · Physics 2011-09-13 A. Aste , G. Baur , K. Hencken , D. Trautmann , G. Scharf

The process of electron-positron pair production is investigated within the phase-space Wigner formalism. The similarities between atomic ionization and pair production for homogeneous, but time-dependent linearly polarized electric fields…

High Energy Physics - Phenomenology · Physics 2015-12-21 Christian Kohlfürst