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We show that lepton-pair production in Virtual Compton Scattering offers, through interference with the well-known Bethe-Heitler process, a sensitive probe to learn the longitudinal response of resonances and the electromagnetic nucleon…

Nuclear Theory · Physics 2016-08-15 A. Yu. Korchin , O. Scholten , F. de Jong

The circularly polarized gamma-quanta with energy > 10 MeV are formed during Compton backscattering of circularly polarized laser photons on an electron beam with energy 1.26 GeV. The contribution of nonlinear processes for planned…

Accelerator Physics · Physics 2007-05-23 A. S. Arychev , A. P. Potylitsyn , M. N. Strikhanov

The Breith-Wheeler resonant process has been theoretically studied in a strong X-ray electromagnetic wave field under conditions when the energy of one of the initial high-energy gamma quanta passes into the energy of a positron or…

High Energy Physics - Phenomenology · Physics 2023-08-08 S. P. Roshchupkin , V. D. Serov , V. V. Dubov

The extreme intensities obtainable with lasers such as Gemini allow non-linear QED phenomena to be investigated according to our calculations. Electron-positron pair production from a pure vacuum target, which has yet to be observed…

We investigate the conditions required for the production of electron-positron pairs above a pulsar polar cap (PC) and the influence of pair production on the energetics of the primary particle acceleration. Assuming space-charge limited…

Astrophysics · Physics 2016-08-30 Alice K. Harding , Alexander G. Muslimov , Bing Zhang

The impact of radiation reaction and Breit-Wheeler pair production on acceleration of fully ionized Carbon ions driven by an intense linearly-polarized laser pulse has been investigated in the ultra-relativistic transparency regime. Against…

Plasma Physics · Physics 2024-02-09 Shikha Bhadoria , Mattias Marklund , Christoph H. Keitel

We study nonperturbative multiphoton electron-positron pair creation in ultrastrong electromagnetic fields formed by two counterpropagating pulses with elliptic polarization. Our numerical approach allows us to take into account the…

Atomic Physics · Physics 2015-06-25 Anton Wöllert , Heiko Bauke , Christoph H. Keitel

An electromagnetic pair-creation cascade seeded by an electron or a photon in an intense plane wave interacts in a complicated way with the external field. Many simulations neglect the vector nature of photons by including their interaction…

High Energy Physics - Phenomenology · Physics 2013-04-29 B. King , N. Elkina , H. Ruhl

The nature of matter creation is one of the most basic processes in the universe. According to the quantum electrodynamics theory, matters can be created from pure light through the Breit Wheeler (BW) process. The multi-photon BW process…

Plasma Physics · Physics 2019-01-16 Jinqing Yu , Haiyang Lu , T. Takahashi , Ronghao Hu , Zheng Gong , Wenjun Ma , Yongsheng Huang , Xueqing Yan

We study single, double and higher-order nonlinear Compton scattering where an electron interacts nonlinearly with a high-intensity laser and emits one, two or more photons. We study, in particular, how double Compton scattering is…

High Energy Physics - Phenomenology · Physics 2019-05-22 Victor Dinu , Greger Torgrimsson

We investigate the chargino production process $\gamma\gamma\rightarrow\tilde{W}^{+}\tilde{W}^{-}$ at high energy $\gamma\gamma$ colliders in the framework of the minimal supersymmetric standard model (MSSM). Here the high energy $\gamma$…

High Energy Physics - Phenomenology · Physics 2019-08-15 Masayuki Koike , Toshihiko Nonaka , Tadashi Kon

A process of the pair production by a circularly polarized photon in the field of unpolarized atomic electron has been considered in the Weizaecker-Williams approximation. The degree of longitudinal polarization of positron and electron has…

High Energy Physics - Phenomenology · Physics 2009-11-07 V. V. Bytev , E. A. Kuraev , M. V. Galynskii , A. P. Potylitsyn

We study electron-positron pair production within two counter-propagating, circularly polarized electromagnetic fields through the Wigner formalism. We numerically generate high-resolution momentum maps to perform a detailed spectroscopic…

High Energy Physics - Phenomenology · Physics 2025-02-05 Christian Kohlfürst

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

The process of electron-positron pair production by linearly polarized photons is used as a polarimeter to perform mobile measurement of linear photon polarization. In the limit of high photon energies, omega, the distributions of the…

High Energy Physics - Phenomenology · Physics 2009-10-31 I. V. Akushevich , H. Anlauf , E. A. Kuraev , P. G. Ratcliffe , B. G. Shaikhatdenov

If a beam of unpolarized positrons (which is considered as a sum of two fractions with opposite helicities) passes through an intense circular polarized laser radiation these fractions may be separated. For high laser flash intensity each…

Accelerator Physics · Physics 2017-08-23 A. P. Potylitsyn

We show that a strong laser pulse combined with a strong x-ray pulse can be employed in a detection scheme for characterizing high-energy $\gamma$-ray pulses down to the zeptosecond timescale. The scheme employs streak imaging technique…

Instrumentation and Detectors · Physics 2015-05-28 K. Z. Hatsagortsyan , A. Ipp , J. Evers , A. Di Piazza , C. H. Keitel

We investigate the optimization of the photon polarization to increase the yield of the Breit-Wheeler pair production in arbitrarily polarized plane wave backgrounds. We show that the optimized photon polarization can improve the positron…

High Energy Physics - Phenomenology · Physics 2022-09-21 Yunquan Gao , Suo Tang

Photon pair generation in silicon photonic integrated circuits relies on four wave mixing via the third order nonlinearity. Due to phase matching requirements and group velocity dispersion, this method has typically required TE polarized…

Cascaded Compton scattering and Breit-Wheeler (BW) processes play fundamental roles in high-energy astrophysical sources and laser-driven quantum electrodynamics (QED) plasmas. A thorough comprehension of the polarization transfer in these…

High Energy Physics - Phenomenology · Physics 2023-11-07 Qian Zhao , Ting Sun , Kun Xue , Feng Wan , Jian-Xing Li