Results 21 to 30 of about 33,765 (166)

Precision determination of the muon g-2 and alpha(QED) on the Z [PDF]

Proceedings of International Europhysics Conference on High Energy Physics — PoS(hep2001), 2001
Francisco Ynduráin, J. F. de Trocóniz
openalex   +2 more sources

Laser spectroscopy of simple atoms and precision tests of bound state QED [PDF]

, 2000
10 pages, 8 figures, invited talk at 3rd Simposium on Modern Problems of Laser Physics (Novosibirsk, 2000)
Savely G. Karshenboim
  +5 more sources

Precision physics of simple atoms: QED tests, nuclear structure and fundamental constants [PDF]

Physics Reports, 2005
Quantum electrodynamics is the first successful and still the most successful quantum field theory. Simple atoms, being essentially QED systems, allow highly accurate theoretical predictions. Because of their simple spectra, such atoms have been also efficiently studied experimentally frequently offering the most precisely measured quantities.
Savely G. Karshenboim
openalex   +5 more sources

Towards Precision Spectroscopy of Antiprotonic Atoms for Probing Strong-field QED [PDF]

Proceedings of International Conference on Exotic Atoms and Related Topics and Conference on Low Energy Antiprotons — PoS(EXA-LEAP2024)
PAX (antiProtonic Atom X-ray spectroscopy) is a new experiment with the aim to test strong-field quantum electrodynamics (QED) effects by performing high-precision x-ray spectroscopy of antiprotonic atoms. By utilizing advanced microcalorimeter detection techniques and a low-energy antiproton beam provided by the ELENA ring at CERN, gaseous targets ...
Gonçalo Baptista, Shikha Rathi, Michael Roosa, Quentin Senetaire, Jonas Sommerfeldt, T. Azuma, Daniel Becker, F. Butin, Ofir Eizenberg, Joseph W. Fowler, Hiroyuki Fujioka, Davide Gamba, N. Garroum, Mauro Guerra, T. Hashimoto, Takashi Higuchi, P. Indelicato, Jorge Machado, Kelsey M. Morgan, F. Nez, Jason Nobles, Ben Ohayon, S. Okada, D. R. Schmidt, Daniel S. Swetz, Joel N. Ullom, P. Yzombard, Marco Zito, N. Paul   +28 more
  +6 more sources

High precision hyperfine measurements in Bismuth challenge bound-state strong-field QED [PDF]

Nature Communications, 2017
AbstractElectrons bound in highly charged heavy ions such as hydrogen-like bismuth 209Bi82+ experience electromagnetic fields that are a million times stronger than in light atoms. Measuring the wavelength of light emitted and absorbed by these ions is therefore a sensitive testing ground for quantum electrodynamical (QED) effects and especially the ...
Johannes Ullmann, Zoran Andelkovic, C. Brandau, A. Dax, W. Geithner, Christopher Geppert, C. Gorges, M. Hammen, V. Hannen, S. Kaufmann, Kristian König, Yu. A. Litvinov, Matthias Lochmann, Bernhard Maaß, Johann Meisner, T. Murböck, R. Sánchez, Matthias Schmidt, S. Schmidt, Markus Steck, Th. Stöhlker, R. C. Thompson, C. Trageser, J. Vollbrecht, Christian Weinheimer, W. Nörtershäuser   +25 more
openalex   +7 more sources

Precision test of bound-state QED at intermediate Z with kaonic neon

We report Dirac-Fock calculations of transition energies for kaonic neon (KNe). For the most intense line, the 7-6 transition, the calculated energy is 9450.28 eV, which includes a bound-state QED (BSQED) contribution of 12.66 eV. This is in excellent agreement with the recent SIDDHARTHA-2 measurement at DA$Φ$NE of 9450.23 $\pm$ 0.37 (stat.) $\pm$ 1.50
Simone Manti
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QED with massive photons for precision physics: zero modes and first result for the hadron spectrum

Proceedings of The 38th International Symposium on Lattice Field Theory — PoS(LATTICE2021), 2022
18 pages, 9 figures. Submitted as a conference proceeding for the 38th International Symposium on Lattice Field Theory (2021) contribution 281 (combines contributions 281 and 102)
Clark, M, Della Morte, Michele, Hall, Zack, Hörz, Ben, Nicholson, Amy, Shindler, Andrea, Tsang, J. Tobias, Walker-Loud, André, Yan, Haobo   +8 more
openaire   +3 more sources

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, Mauro Chiesa, Syed Mehedi Hasan, Guido Montagna, Oreste Nicrosini, Fulvio Piccinini   +5 more
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, Vladimir A. Smirnov, Lorenzo Tancredi   +2 more
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Combining QED and QCD transverse-momentum resummation for W and Z boson production at hadron colliders

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, Leandro Cieri, Giancarlo Ferrera, German F. R. Sborlini   +3 more
doaj   +1 more source