Results 71 to 80 of about 35,230 (208)

Hadronic corrections to μ-e scattering at NNLO with space-like data

Journal of High Energy Physics, 2019
The Standard Model prediction for μ-e scattering at Next-to-Next-to-Leading Order (NNLO) contains non-perturbative QCD contributions given by diagrams with a hadronic vacuum polarization insertion in the photon propagator.
Matteo Fael
doaj   +1 more source

QED theory of the nuclear magnetic shielding in hydrogen-like ions

, 2011
The shielding of the nuclear magnetic moment by the bound electron in hydrogen-like ions is calculated ab initio with inclusion of relativistic, nuclear, and quantum electrodynamics (QED) effects.
C. H. Keitel, H. A. Bethe, K. Pachucki, V. A. Yerokhin, Z. Harman   +4 more
core   +1 more source

Muonic-Atom Spectroscopy and Impact on Nuclear Structure and Precision QED Theory

, 2022
Recent progress in laser and x-ray spectroscopy of muonic atoms offers promising long-term possibilities at the intersection of atomic, nuclear and particle physics. In muonic hydrogen, laser spectroscopy measurements will determine the ground-state hyperfine splitting (HFS) and additionally improve the Lamb shift by a factor of 5.
Antognini, Aldo, Bacca, Sonia, Fleischmann, Andreas, Gastaldo, Loredana, Hagelstein, Franziska, Indelicato, Paul, Knecht, Andreas, Lensky, Vadim, Ohayon, Ben, Pascalutsa, Vladimir, Paul, Nancy, Pohl, Randolf, Wauters, Frederik   +12 more
openaire   +2 more sources

Scrambling‐Enhanced Quantum Battery Charging in Black Hole Analogues

Advanced Science, Volume 13, Issue 11, 23 February 2026.
By employing a black‐hole‐analog quantum battery constructed from a position‐dependent XY model, its dynamical behavior is investigated through a quench of the scrambling parameter. It is systematically quantified that how the simulated scrambling improves key performance metrics‐namely, stored energy, peak power, and charging time‐thereby offering a ...
Zhilong Liu, Ying Li, Zehua Tian, Jieci Wang   +3 more
wiley   +1 more source

Consequences of chirally enhanced explanations of (g − 2) μ for h → μμ and Z → μμ

Journal of High Energy Physics, 2021
With the long-standing tension between experiment and Standard-Model (SM) prediction in the anomalous magnetic moment of the muon a μ recently reaffirmed by the Fermilab experiment, the crucial question becomes which other observables could be sensitive ...
Andreas Crivellin, Martin Hoferichter
doaj   +1 more source

Precise measurement of positronium hyperfine splitting using the Zeeman effect

, 2011
Positronium is an ideal system for the research of the quantum electrodynamics (QED) in bound state. The hyperfine splitting (HFS) of positronium, $\Delta_{\mathrm{HFS}}$, gives a good test of the bound state calculations and probes new physics beyond ...
Akira Ishida, Akira Yamamoto, AP Mills Jr, AP Mills Jr, BA Kniehl, E Carlson, Ginga Akimoto, H Grotch, H Grotch, Haruo Saito, K Melnikov, Kenichi Tanaka, M Lewis, M Skalsey, Mitsuhiro Yoshida, MW Ritter, O Jinnouchi, RJ Hill, S Asai, Shoji Asai, Taikan Suehara, Tomio Kobayashi, Toshio Namba, Y Kataoka, Yuichi Sasaki   +24 more
core   +1 more source

A Semi‐Implicit Numerical Method for Simultaneous Fluid‐Structure Interaction

International Journal for Numerical Methods in Fluids, Volume 98, Issue 2, Page 138-147, February 2026.
A one‐dimensional shallow water model is coupled with a floating boat, which is assumed to be in hydrostatic equilibrium with the underlying water. Numerically, a semi‐implicit discretization of the shallow water equations also includes the Archimedes' floating conditions in such a fashion that the boat's vertical position and pitch slope are ...
Vincenzo Casulli
wiley   +1 more source

Higher-order Sudakov resummation in coupled gauge theories

Journal of High Energy Physics, 2020
We consider the higher-order resummation of Sudakov double logarithms in the presence of multiple coupled gauge in. The associated evolution equations depend on the coupled β functions of two (or more) coupling constants α a and α b , as well as ...
Georgios Billis, Frank J. Tackmann, Jim Talbert   +2 more
doaj   +1 more source

Proton Charge Radius and Precision Tests of QED

, 2014
The "proton radius puzzle" remains unsolved since it was established in 2010. This paper summarizes the current state and gives an overview over upcoming experiments.
openaire   +2 more sources

Transverse-momentum resummation at mixed QCD⊗QED NNLL accuracy for Z boson production at hadron colliders

Journal of High Energy Physics
We consider the transverse momentum (q T ) distribution of neutral charged bosons at hadron colliders. We perform the resummation of the logarithmically-enhanced effects due to simultaneous QCD and QED initial-state radiation, up to mixed next-to-next-to-
Andrea Autieri, Stefano Camarda, Leandro Cieri, Giancarlo Ferrera, German F. R. Sborlini   +4 more
doaj   +1 more source