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π − π scattering, QED, and finite-volume quantization
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QED as a many-body theory of worldlines: General formalism and infrared structure
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Theory of QED radiative corrections to neutrino scattering at accelerator energies
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Perturbative computation in a QED 3 -inspired conformal Abelian gauge model on the lattice
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QED as a many-body theory of worldlines. II. All-order S -matrix formalism
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Broadening of particle distributions in electron-, neutrino-, and antineutrino-nucleus scattering from QED interactions
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One loop reduced QED for massive fermions within an innovative formalism
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Vacuum stability, fixed points, and phases of QED 3 at large N f
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Energy loss of a heavy fermion in a collisional QED plasma
We compute the energy loss of heavy fermions moving in a plasma, taking into account the modification of the photon collective modes induced by collisions using a Bhatnagar-Gross–Krook collisional kernel. We include contributions from both hard and soft scatterings of the heavy fermion using a collisionally modified hard-thermal-loop resummed propagator. Using this method, one does not need to introduce a separation scale between hard- and soft-momentum exchanges. To place our calculation in context, we review other theoretical approaches to computing the collisional energy loss of fermions and discuss the systematics and results obtained in each approach compared to using a resummed propagator for both hard and soft momentum exchanges. Our final results indicate that self-consistently including the effect of collisions in the self-energies of the resummed propagator results in an increased energy loss compared to using collisionless hard-thermal-loop propagators. The effect becomes larger as the magnitude of the coupling constant and the velocity of the fermion increase. Published by the American Physical Society 2024
QED radiative effects in the processes of exclusive photon electroproduction from polarized protons with the next-to-leading accuracy
Radiative effects in the electroproduction of photons in polarized ep-scattering are calculated with the next-to-leading (NLO) accuracy. The contributions of loops and two photon emission were presented in analytical form. The covariant approach of Bardin and Shumeiko was used to extract the infrared divergence. All contributions to the radiative correction were presented in the form of the correction to the leptonic tensor thus allowing for further applications in other experiments, e.g., deep inelastic scattering. The radiative corrections (RC) to the cross sections and polarization asymmetries were analyzed numerically for kinematical conditions of the current measurement at Jefferson Lab. Specific attention was paid on analyzing kinematical conditions for the process with large radiative effect when momenta of two photons in the final state are collinear to momenta of initial and final electrons, respectively.
Elements of QED-NRQED effective field theory: NLO scattering at leading power
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QED radiative corrections to low-energy Møller and Bhabha scattering
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Finite density QED 1 + 1 near Lefschetz thimbles
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Heterotically deformed sigma models on the world sheet of semilocal strings in supersymmetric QED
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