Results 1 to 10 of about 886,321 (128)
High-precision four-loop mass and wave function renormalization in QED
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2020 The 4-loop QED mass and wave function renormalization constants Z2 and Zm have been evaluated in the on-shell subtraction scheme with 1100 digits of precision.
Stefano Laporta
exaly +3 more sources
QED challenges at FCC-ee precision measurements
European Physical Journal C: Particles and Fields, 2019 The expected experimental precision of the rates and asymmetries in the Future Circular Collider with electron–positron beams (FCC-ee) in the center of the mass energy range 88–365 GeV considered for construction in CERN, will be better by a factor 5–200.
S. Jadach, M. Skrzypek
doaj +2 more sources
The longitudinal structure function in the presence of QED effects
Physics Letters B, 2021 The highest precision for theoretical predictions at the high LHC energy requires the calculation of parton distribution function (PDFs) and the structure functions which include heavy quarks that include perturbative QCD and QED corrections.
Marzieh Mottaghizadeh +1 more
doaj +1 more source
Resolving charged hadrons in QED — gauge invariant interpolating operators
Journal of High Energy Physics, 2022 Standard interpolating operators for charged mesons, e.g. J B = b ¯ $$ \overline{b} $$ iγ 5 u for B − , are not gauge invariant in QED and therefore problematic for perturbative methods.
Saad Nabeebaccus, Roman Zwicky
doaj +1 more source
Journal of High Energy Physics, 2021 We analyze in detail the physics potential of an experiment like the one recently proposed by the vIOLETA collaboration: a kilogram-scale Skipper CCD detector deployed 12 meters away from a commercial nuclear reactor core.
Guillermo Fernandez-Moroni +5 more
doaj +1 more source
Towards muon-electron scattering at NNLO
Journal of High Energy Physics, 2020 The recently proposed MUonE experiment at CERN aims at providing a novel determination of the leading order hadronic contribution to the muon anomalous magnetic moment through the study of elastic muon-electron scattering at relatively small momentum ...
Carlo M. Carloni Calame +5 more
doaj +1 more source
Final-state QED multipole radiation in antenna parton showers
Journal of High Energy Physics, 2017 We present a formalism for a fully coherent QED parton shower. The complete multipole structure of photonic radiation is incorporated in a single branching kernel.
Ronald Kleiss, Rob Verheyen
doaj +1 more source
Analytic results for two-loop planar master integrals for Bhabha scattering
Journal of High Energy Physics, 2021 We analytically evaluate the master integrals for the second type of planar contributions to the massive two-loop Bhabha scattering in QED using differential equations with canonical bases.
Claude Duhr +2 more
doaj +1 more source
Journal of High Energy Physics, 2023 In this article, we consider the transverse momentum (q T ) distribution of W and Z bosons produced in hadronic collisions. We combine the q T resummation for QED and QCD radiation including the QED soft emissions from the W boson in the final state.
Andrea Autieri +3 more
doaj +1 more source
Rational terms of UV origin at two loops
Journal of High Energy Physics, 2020 The advent of efficient numerical algorithms for the construction of one-loop amplitudes has played a crucial role in the automation of NLO calculations, and the development of similar algorithms at two loops is a natural strategy for NNLO automation ...
Stefano Pozzorini +2 more
doaj +1 more source