Experimental Evidence of Radiation Reaction in the Collision of a High-Intensity Laser Pulse with a Laser-Wakefield Accelerated Electron Beam
Artikel i vetenskaplig tidskrift, 2018

The dynamics of energetic particles in strong electromagnetic fields can be heavily influenced by the energy loss arising from the emission of radiation during acceleration, known as radiation reaction. When interacting with a high-energy electron beam, today's lasers are sufficiently intense to explore the transition between the classical and quantum radiation reaction regimes. We present evidence of radiation reaction in the collision of an ultrarelativistic electron beam generated by laser-wakefield acceleration (μ 500 MeV) with an intense laser pulse (a0 > 10). We measure an energy loss in the postcollision electron spectrum that is correlated with the detected signal of hard photons (γ rays), consistent with a quantum description of radiation reaction. The generated γ rays have the highest energies yet reported from an all-optical inverse Compton scattering scheme, with critical energy > 30 MeV.

Författare

J. M. Cole

Imperial College London

K. T. Behm

University of Michigan

E. Gerstmayr

Imperial College London

Tom Blackburn

Chalmers, Fysik, Teoretisk fysik

J. C. Wood

Imperial College London

C. D. Baird

University of York

M. J. Duff

University of Strathclyde

Christopher Harvey

Chalmers, Fysik, Teoretisk fysik

Antony Ilderton

University of Plymouth

Chalmers, Fysik, Teoretisk fysik

A. S. Joglekar

University of California

University of Michigan

K. Krushelnick

University of Michigan

S. Kuschel

Friedrich-Schiller-Universität Jena

Mattias Marklund

Chalmers, Fysik, Teoretisk fysik

P. McKenna

University of Strathclyde

C. D. Murphy

University of York

K. Poder

Imperial College London

C. P. Ridgers

University of York

G. M. Samarin

Queen's University Belfast

G. Sarri

Queen's University Belfast

D. R. Symes

Rutherford Appleton Laboratory

A. G.R. Thomas

Lancaster University

University of Michigan

J. Warwick

Queen's University Belfast

M. Zepf

Helmholtz-Institute Jena

Queen's University Belfast

Friedrich-Schiller-Universität Jena

Z. Najmudin

Imperial College London

S. P. D. Mangles

Imperial College London

Physical Review X

2160-3308 (ISSN)

Vol. 8 1 011020

Ämneskategorier

Acceleratorfysik och instrumentering

Atom- och molekylfysik och optik

Annan fysik

DOI

10.1103/PhysRevX.8.011020

Mer information

Senast uppdaterat

2018-05-25