Bounds on radii and anomalous magnetic dipole moments of quarks and leptons from LEP, SLC and HERA [PDF]
Zeitschrift für Physik C Particles and Fields, 1995 Leptons, quarks and gauge bosons are assumed to be pointlike particles in the Standard Model. Stringent bounds on the radii of quarks and leptons and their weak anomalous magnetic moments can be derived from the high-precision measurements at LEP and SLC. We find a model-independent bound ofR≲10−17 cm for quark and lepton radii.
Köpp, G. +3 more
openaire +4 more sources
A large muon EDM from dark matter
Journal of High Energy Physics, 2023 We explore a model of dark matter (DM) that can explain the reported discrepancy in the muon anomalous magnetic moment and predict a large electric dipole moment (EDM) of the muon.
Kim Siang Khaw +4 more
doaj +1 more source
Testing new physics with the electron g-2 [PDF]
, 2012 We argue that the anomalous magnetic moment of the electron (a_e) can be used to probe new physics. We show that the present bound on new-physics contributions to a_e is 8*10^-13, but the sensitivity can be improved by about an order of magnitude with ...
A Czarnecki +100 more
core +3 more sources
Axial vector transition form factors in holographic QCD and their contribution to the anomalous magnetic moment of the muon [PDF]
Physical Review D, 2019 We evaluate axial vector transition form factors in holographic QCD models that have been shown to reproduce well recent experimental and theoretical results for the pion transition form factor.
J. Leutgeb, A. Rebhan
semanticscholar +1 more source
Preparations for a search of the muon EDM at PSI [PDF]
EPJ Web of Conferences, 2023 Electric dipole moments (EDMs) of fundamental particles violate time invariance and the combined symmetry of charge and parity (CP). The existence of a large muon EDM (muEDM) is made plausible by tensions with Standard Model predictions for semileptonic ...
Schmidt-Wellenburg P. +6 more
doaj +1 more source
Quark electric dipole moment induced by magnetic field [PDF]
, 2010 We show numerically that quarks develop an electric dipole moment in the direction of a sufficiently intense magnetic field due to local fluctuations of topological charge.
B. Müller +5 more
core +4 more sources
TAU-PAIR PRODUCTION VIA PHOTON-PHOTON COLLISIONS AT LEP [PDF]
, 1995 We point out that the cross-section for the process $e^+ e^- \to e^+ e^- \tau^+ \tau^-$ at LEP is large enough to allow for a study of the anomalous electromagnetic couplings of the $\tau$ lepton.
A. Aeppli +18 more
core +3 more sources
Major Reference Works, Page 169-176., 2023 International Tables for Crystallography is the definitive resource and reference work for crystallography and structural science.
Each of the eight volumes in the series contains articles and tables of data relevant to crystallographic research and to applications of crystallographic methods in all sciences concerned with the ...
Gerrit van der Laan C. Chantler +2 more
wiley +1 more source
Measurement of the Muon Anomalous Magnetic Moment to 0.7 ppm [PDF]
, 2002 The experimental method together with the analysis method and results of the data taken in 2000 and prospects of the muon anomalous magnetic and electric dipole moment experiments are presented here.Comment: 12 pages, 20 figures.
Semertzidis, Yannis K.
core +4 more sources
Muon electric dipole moment as a probe of flavor-diagonal CP violation
Physics Letters B, 2022 Electric dipole moments (EDMs) of elementary particles are powerful probes of new physics with flavor-diagonal CP violation. The reported discrepancy in the muon anomalous magnetic moment motivates us to explore to what extent new physics with flavor ...
Yuichiro Nakai +2 more
doaj +1 more source