Results 11 to 20 of about 886,321 (128)

Coloring mixed QCD/QED evolution [PDF]

SciPost Physics, 2022
Parton showers are crucial components of high-energy physics calculations. Improving their modelling of QCD is an active research area since shower approximations are stumbling blocks for precision event generators.
Leif Gellersen, Stefan Prestel, Michael Spannowsky
doaj   +2 more sources

QEDr: a finite-volume QED action with redistributed spatial zero-momentum modes

Journal of High Energy Physics
We present a finite-volume QED action designed to improve the infinite-volume extrapolation of hadronic observables in precision lattice QCD+QED calculations.
Matteo Di Carlo, Maxwell T. Hansen, Nils Hermansson-Truedsson, Antonin Portelli   +3 more
doaj   +2 more sources

Stringent test of QED with hydrogenlike tin [PDF]

, 2023
Inner-shell electrons naturally sense the electric field close to the nucleus, which can reach extreme values beyond $10^{15}\,\text{V}/\text{cm}$ for the innermost electrons.
Sailer, T., Harman, Z., Keitel, C. H., Morgner, J., Sikora, B., Yerokhin, V. A., Sturm, S., Bekker, H., König, C. M., Tu, B., López-Urrutia, J. R. Crespo, Blaum, K., Heiße, F., Lyu, C., B. Sikora, J. Morgner, C. H. Keitel, C. M. König, T. Sailer, Keitel, C., V. A. Yerokhin, B. Tu, Yerokhin, V., F. Heiße, S. Sturm, Crespo López-Urrutia, J. ; https://orcid.org/, H. Bekker, K. Blaum, J. R. Crespo López-Urrutia, Z. Harman, König., C., C. Lyu   +31 more
core   +2 more sources

vbertone/MELA: 1.0.0-QED

, 2021
Version of MELA that implements the evolution of all leptons (electrons/muons/taus) in pure QED up to ...
Stefano Carrazza, Valerio Bertone
core   +1 more source

Inclusion of QED corrections in PDFs fits [PDF]

, 2023
The need of percent precision in high energy physics requires the inclusion of QED effects in theoretical predictions, including the contribution of photon-initiated processes.
Laurenti, Niccolò
core   +1 more source

PHOTOS Monte Carlo for precision simulation of QED in decays [PDF]

, 2007
Because of properties of QED, the bremsstrahlung corrections to decays of particles or resonances can be calculated, with a good precision, separately from other effects.
Was, Z., Golonka, P., Nanava, G.
core   +1 more source

QED with massive photons for precision physics:zero modes and first result for the hadron spectrum [PDF]

, 2022
The current precision reached by lattice QCD calculations of low-energy hadronic observables, requires not only the introduction of electromagnetic corrections, but also control over all the potential systematic uncertainties introduced by the lattice ...
Nicholson, A., Clark, M. A., Della Morte, M.; id_orcid, Hall, Z., Hörz, B., Shindler, A., Yan, H., Tsang, J. T., Walker-Loud, A.   +8 more
core   +1 more source

NNLO virtual and real leptonic corrections to muon-electron scattering

Journal of High Energy Physics, 2021
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 ...
Ettore Budassi, Carlo M. Carloni Calame, Mauro Chiesa, Clara Lavinia Del Pio, Syed Mehedi Hasan, Guido Montagna, Oreste Nicrosini, Fulvio Piccinini   +7 more
doaj   +1 more source

The two-loop perturbative correction to the (g − 2) μ HLbL at short distances

Journal of High Energy Physics, 2021
The short-distance behaviour of the hadronic light-by-light (HLbL) contribution to (g − 2) μ has recently been studied by means of an operator product expansion in a background electromagnetic field.
Johan Bijnens, Nils Hermansson-Truedsson, Laetitia Laub, Antonio Rodríguez-Sánchez   +3 more
doaj   +1 more source

$\alpha_{QED, eff}$(s) for precision physics at the FCC-ee/ILC [PDF]

, 2019
Discovering “Physics behind precision” at future linear or circular colliders (ILC/FCC projects) requires improved SM predictions based on more precise input parameters.
Jegerlehner, F, Jegerlehner, Fred
core   +1 more source