By taking the spin and polarization of electrons, positrons photons into account in strong-field QED processes nonlinear Compton emission pair production, we find that growth rate cascades ultra-intense laser fields can be substantially reduced. While this means fewer particles are produced, also found them to highly polarized. We further high-energy tail particle spectra is polarized opposite ...

Abstract We study the potential impact on electroweak (EW) fits due to tensions between current determinations of hadronic vacuum polarisation (HVP) contributions anomalous magnetic moment muon ( $$a_{\mu }$$ a μ ), based either phenomenological dispersion integrals usi...

Systems with the quantum numbers of up to twelve charged and neutral pseudoscalar mesons, as well one-, two-, three-nucleon systems, are studied using dynamical lattice chromodynamics electrodynamics (QCD+QED) calculations effective field theory. QED effects on hadronic interactions determined by comparing systems hadrons after tuning quark masses remove strong isospin breaking effects. A non-r...

In the previous work, "Spin correlations in elastic $e^+ e^-$ scattering QED" (Yongram, 2018), spin for entangled electrons and positrons as emergent particles of electron-positron (also known Bhabha scattering) were calculated at tree level QED. When trying to reproduce author's we have found different results. this show calculation fully (initial final polarized states) partially (just probab...

We apply positivity bounds directly to a $U(1)$ gauge theory with charged scalars and fermions, i.e., QED, minimally coupled gravity. Assuming that the massless $t$-channel pole may be discarded, we show improved are violated unless new physics is introduced at parametrically low scale ${\mathrm{\ensuremath{\Lambda}}}_{\mathrm{new}}\ensuremath{\sim}(em{M}_{\mathrm{Pl}}{)}^{1/2}$, consistent sim...