5. Annual MT Meeting

Radiation Reaction of a Laser-Accelerated Electron Beam with a Relativistic Laser Field

Not scheduled

20m

various rooms, please see programme (Helmholtz Institute Jena)

Poster ARD

Speaker

Felipe Cezar Salgado (Helmholtz Institute Jena)

Description

Radiation reaction is defined as the recoil force that a moving particle suffers due to the emission of electromagnetic radiation. The effect of radiation reaction has been intriguing physicists since 1906 starting with the seminal studies, for example, of Planck, Abraham, and Lorentz [1]. Several models have been derived since then to describe radiation reaction of electrons, for example, in a high-intensity laser field. In the first section of the poster, different models of radiation reaction are described: Landau-Lifshitz (LL) equation of motion [2], the semiclassical approach by applying a correction factor on the radiation force of the LL equation [3] and, finally, a simple RR model that accounts for the QED effects. In the second part of the poster, we describe an experiment at the Rutherford Appleton Laboratory (RAL) that can test physics models of radiation reaction. The experiment is based on the recent work by Poder et al. [4] and Cole et al. [5], a laser-accelerated electron beam interacts with a high-intensity laser pulse. The energy loss of the electron beam due to the emission of high energy photons can be measured. The experimental setup is presented and discussed in detail. **References** [1] M. Planck, Vorlesungen Über Die Theorie Der Wärmestrahlung. Johann Ambrosius-Barth Verlag, 1906; M. Abraham, Theorie Der Elektrizität: Elektromagnetische Theorie Der Strahlung. B. G. Teubner Verlag, 1906; H. A. Lorentz, The Theory of Electrons and Its Applications to the Phenomena of Light and Radiant Heat, 2nd ed. B. G. Teubner Verlag, 1916. [2] L. Landau and E. Lifshitz, Course of Theoretical Physics: The Classical Theory of Fields, 3rd ed. Pergamon Press, 1971. [3] J. G. Kirk et al., “Pair production in counter-propagating laser beams,” Plasma Phys. Control. Fusion, vol. 51, no. 8, p. 085008, 2009. [4] K. Poder et al., “Experimental Signatures of the Quantum Nature of Radiation Reaction in the Field of an Ultraintense Laser,” Phys. Rev. X, vol. 8, no. 3, p. 031004, 2018. [5] J. M. Cole et al., “Experimental Evidence of Radiation Reaction in the Collision of a High-Intensity Laser Pulse with a Laser-Wakefield Accelerated Electron Beam,” Phys. Rev. X, vol. 8, no. 1, p. 011020, 2018.