Abstract Recent high-intensity laser experiments (Cole et al 2018 Phys. Rev. X 8 011020; Poder 031004) have shown evidence of strong radiation reaction in the quantum regime. Experimental effects on and electron–positron pair cascades has, however, proven challenging to obtain crucially depends maximising parameter electron (defined as ratio electric field it feels its rest frame Schwinger fiel...

Abstract The creation of an electron–positron pair in the collision two real photons, namely linear Breit–Wheeler process, has never been detected directly laboratory since its prediction 1934 despite fundamental importance quantum electrodynamics and high energy astrophysics. In last few years, several experimental setup have proposed to observe this process laboratory, relying either on therm...

The process of electron-positron pair production by linearly polarized photons is used as a polarimeter to perform mobile measurement of linear photon polarization. In the limit of high photon energies, ω, the distributions of the recoil-electron momentum and azimuthal angle do not depend on the photon energy in the laboratory frame. We calculate the power corrections of order m/ω to the above ...

This study investigated the effects of mate switching on the reproductive performance of the severum cichlid, Herosseverus, by advancing the egg and larval production in hatcheries. Two reproductive tactic treatments of “monogamous pair” and “mate switching” were used for evaluating 4 reproductive traits of egg production, hatching rate, spawning intervals, and starvation tolerance of the larva...