Nonlinear Compton scattering of polarized photons in plane-wave backgrounds

King, B.; Tang, Suo

doi:10.1103/physreva.102.022809

Cited by 53 publications

(32 citation statements)

References 55 publications

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“…Thus we expect the formalism to be very well-suited for future calculations of non-linear Compton scattering [44][45][46][47][48][49][50], including at higher orders, as well as its crossed process, multiple photon Bremsstrahlung (see, for example, [51][52][53][54][55][56][57][58]) and electron-positron annihilation into several photons [59][60][61][62]. This will, of course, require a computer algebra implementation, which is in progress.…”

Section: Discussionmentioning

confidence: 99%

Worldline master formulas for the dressed electron propagator. Part I. Off-shell amplitudes

Ahmadiniaz

Guzman

Bastianelli

et al. 2020

J. High Energ. Phys.

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In the first-quantised worldline approach to quantum field theory, a longstanding problem has been to extend this formalism to amplitudes involving open fermion lines while maintaining the efficiency of the well-tested closed-loop case. In the present series of papers, we develop a suitable formalism for the case of quantum electrodynamics in vacuum (part one and two) and in a constant external electromagnetic field (part three), based on second-order fermions and the symbol map. We derive this formalism from standard field theory, but also give an alternative derivation intrinsic to the worldline theory. In this first part, we use it to obtain a Bern-Kosower type master formula for the fermion propagator, dressed with N photons, in terms of the "N -photon kernel," where offshell this kernel appears also in "subleading" terms involving only N − 1 of the N photons. Although the parameter integrals generated by the master formula are equivalent to the usual Feynman diagrams, they are quite different since the use of the inverse symbol map avoids the appearance of long products of Dirac matrices. As a test we use the N = 2 case for a recalculation of the one-loop fermion self energy, in D dimensions and arbitrary covariant gauge, reproducing the known result. We find that significant simplification can be achieved in this calculation by choosing an unusual momentum-dependent gauge parameter.

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Section: Discussionmentioning

confidence: 99%

Worldline master formulas for the dressed electron propagator. Part I. Off-shell amplitudes

Ahmadiniaz

Guzman

Bastianelli

et al. 2020

J. High Energ. Phys.

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show abstract

“…[50,51]. The extension of this technique into nonlinear regime is possible [47,[52][53][54]. In the extreme nonlinear regime, it will allow us to obtain circularly polarized brilliant γ rays via nonlinear Compton scattering from longitudinally spin-polarized electrons [49], highly sought in detecting schemes of vacuum birefringence in ultrastrong laser fields [55][56][57].…”

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confidence: 99%

High-energy γ -photon polarization in nonlinear Breit-Wheeler pair production and γ polarimetry

Wan

Wang

Guo

et al. 2020

Phys. Rev. Research

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The interaction of an unpolarized electron beam with a counterpropagating ultraintense linearly polarized laser pulse is investigated in the quantum radiation-dominated regime. We employ a semiclassical Monte Carlo method to describe spin-resolved electron dynamics, photon emissions and polarization, and pair production. Abundant high-energy linearly polarized γ photons are generated intermediately during this interaction via nonlinear Compton scattering, with an average polarization degree of more than 50%, further interacting with the laser fields to produce electron-positron pairs due to the nonlinear Breit-Wheeler process. The photon polarization is shown to significantly affect the pair yield by a factor of more than 10%. The considered signature of the photon polarization in the pair's yield can be experimentally identified in a prospective two-stage setup. Moreover, with currently achievable laser facilities the signature can serve also for the polarimetry of high-energy high-flux γ photons.

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“…Althouth the ICS spectrum is at a considerably lower than the maximum energy achievable with a bremsstrahlung source, the ICS photons are mono-energetic and highly linearly polarised (above 75 %), (see also Refs. [120,121]). The quantum energy parameter is η γ 0.1 (for a head-on collision at the strong-field IP).…”

Section: Inverse Compton Sourcementioning

confidence: 99%

Conceptual design report for the LUXE experiment

Abramowicz

Acosta

Altarelli

et al. 2021

Eur. Phys. J. Spec. Top.

Self Cite

128

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This Conceptual Design Report describes LUXE (Laser Und XFEL Experiment), an experimental campaign that aims to combine the high-quality and high-energy electron beam of the European XFEL with a powerful laser to explore the uncharted terrain of quantum electrodynamics characterised by both high energy and high intensity. We will reach this hitherto inaccessible regime of quantum physics by analysing high-energy electron-photon and photon-photon interactions in the extreme environment provided by an intense laser focus. The physics background and its relevance are presented in the science case which in turn leads to, and justifies, the ensuing plan for all aspects of the experiment: Our choice of experimental parameters allows (i) field strengths to be probed where the coupling to charges becomes non-perturbative and (ii) a precision to be achieved that permits a detailed comparison of the measured data with calculations. In addition, the high photon flux predicted will enable a sensitive search for new physics beyond the Standard Model. The initial phase of the experiment will employ an existing 40 TW laser, whereas the second phase will utilise an upgraded laser power of 350 TW. All expectations regarding the performance of the experimental set-up as well as the expected physics results are based on detailed numerical simulations throughout.

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Nonlinear Compton scattering of polarized photons in plane-wave backgrounds

Cited by 53 publications

References 55 publications

Worldline master formulas for the dressed electron propagator. Part I. Off-shell amplitudes

Worldline master formulas for the dressed electron propagator. Part I. Off-shell amplitudes

High-energy γ -photon polarization in nonlinear Breit-Wheeler pair production and γ polarimetry

Conceptual design report for the LUXE experiment

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