Fundamental physical features of resonant spontaneous bremsstrahlung radiation of ultrarelativistic
electrons on nuclei in strong laser fields
【Abstract】
Theoretically predicted fundamental features in the process of resonant spontaneous bremsstrahlung
radiation during the scattering of ultrarelativistic electrons with energies of the order ##IMG##
[http://ej.iop.org/images/1367-2630/24/1/013020/njpac46e3ieqn1.gif] {$\sim 100\enspace \text{GeV}$}
by the nuclei in strong laser fields with intensities up to I ∼ 10 24 W cm −2 . Under resonant
conditions, an intermediate electron in the wave field enters the mass shell. As a result, the
initial second-order process by the fine structure constant is effectively reduced to two
first-order processes: laser-stimulated Compton effect and laser-assisted Mott process. The resonant
kinematics for two reaction channels (A and B) is studied in detail. An analytical resonant
differential cross-section with simultaneous registration of the frequency and the outgoing angle of
a spontaneous gamma-quantum for channels A and B is obtained. The resonant...
【Author】
S P Roshchupkin, A V Dubov, V V Dubov and S S Starodub
【Journal】
New Journal of Physics(IF：3.8) Time：2022-01-25
