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
Chalmers, Fysik, Teoretisk fysik
University of Plymouth
A. S. Joglekar
University of Michigan
University of California
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
STFC Rutherford Appleton Laboratory
A. G.R. Thomas
Lancaster University
University of Michigan
J. Warwick
Queen's University Belfast
M. Zepf
Queen's University Belfast
Friedrich-Schiller-Universität Jena
Helmholtz
Z. Najmudin
Imperial College London
S. P. D. Mangles
Imperial College London
Physical Review X
21603308 (eISSN)
Vol. 8 1 011020Ämneskategorier
Acceleratorfysik och instrumentering
Atom- och molekylfysik och optik
Annan fysik
DOI
10.1103/PhysRevX.8.011020