Diffractive and refractive magnetospheric scintillations may allow a direct testing of the plasma inside the light cylinder. Unusual electrodynamics of the strongly magnetized electron-positron plasma allow separation of the magnetospheric and interstellar scattering. The most distinctive feature of the magnetospheric scintillations is their independence on frequency. Diffractive scattering due...

Volkov states are exact solutions of the Dirac equation in presence an arbitrary plane wave. states, as well free photon not stable background plane-wave field but "decay" electrons/positrons can emit photons and transform into electron-positron pairs. By using corresponding Schwinger-Dyson equations within locally-constant approximation, we compute probabilities nonlinear single Compton scatte...

Double Deeply Virtual Compton Scattering (DDVCS) is the only experimental channel for determination of dependence Generalized Parton Distributions (GPDs) on both average and transferred momentum independently. The physics observables electron induced di-muon production reaction $$\overrightarrow{e}^{\pm }p \rightarrow e^{\pm }p\mu ^+\mu ^-$$ off unpolarized hydrogen are discussed. Their measure...

Laser–electron beam collisions that aim to generate electron–positron pairs require laser intensities I ≳ 1021 W cm−2, which can be obtained by focusing a 1-PW optical spot smaller than 10 μm. Spatial synchronization is challenge because of the Poynting instability concern both for interacting electron (if laser-generated) and scattering laser. One strategy overcome this problem use an coming f...

The Virtual Compton scattering (VCS) process at low energies explores the electromagnetic structure of proton in terms generalized polarizabilities (GPs). In one-photon exchange approximation, VCS can be accessed with exclusive photon production reactions electron or positron beams. extraction GPs from beam has seen substantial progress over past two decades. Nonetheless, a consistent picture t...