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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Measuring signatures in photon angular spectra to distinguish nonlinear Compton scattering models
AU - Russell, Brandon K.
AU - Bulanov, Stepan S.
AU - Qian, Qian
AU - Arran, Christopher
AU - Blackburn, Thomas G.
AU - Bulanov, Sergei V.
AU - Grittani, Gabriele M.
AU - Mangles, Stuart P.D.
AU - Ridgers, Christopher P.
AU - Seipt, Daniel
AU - Thomas, Alexander G.R.
PY - 2024/12/24
Y1 - 2024/12/24
N2 - The collision of a high-energy electron beam with a laser pulse may be used to study radiation reaction and nonlinear Compton scattering among many other processes in strong-field quantum electrodynamics. Predictions from simulation and theory for these interactions rely on a number of approximations and assumptions that have not been experimentally tested. Here, experimentally measurable signatures are identified that might be able to distinguish between radiation reaction models, i.e., classical or quantum, or between the local constant field and local monochromatic approximations used to calculate the properties of the nonlinear Compton process. These signatures are considered through Monte Carlo simulations of various experimental conditions that are relevant to today's laser facilities. Potential detection schemes for measuring the signatures are proposed. We find that single-photon counting of keV photons to resolve harmonics and scintillator-based detection of MeV photons may allow us to validate nonlinear Compton scattering models and radiation reaction models respectively. This will require electron beams with divergence angles less than 2 mrad and less than 20% energy spread.
AB - The collision of a high-energy electron beam with a laser pulse may be used to study radiation reaction and nonlinear Compton scattering among many other processes in strong-field quantum electrodynamics. Predictions from simulation and theory for these interactions rely on a number of approximations and assumptions that have not been experimentally tested. Here, experimentally measurable signatures are identified that might be able to distinguish between radiation reaction models, i.e., classical or quantum, or between the local constant field and local monochromatic approximations used to calculate the properties of the nonlinear Compton process. These signatures are considered through Monte Carlo simulations of various experimental conditions that are relevant to today's laser facilities. Potential detection schemes for measuring the signatures are proposed. We find that single-photon counting of keV photons to resolve harmonics and scintillator-based detection of MeV photons may allow us to validate nonlinear Compton scattering models and radiation reaction models respectively. This will require electron beams with divergence angles less than 2 mrad and less than 20% energy spread.
U2 - 10.1103/PhysRevA.110.062822
DO - 10.1103/PhysRevA.110.062822
M3 - Journal article
AN - SCOPUS:85213466885
VL - 110
JO - Physical review a
JF - Physical review a
SN - 2469-9926
IS - 6
M1 - 062822
ER -