[PDF] Top 20 QED contributions to electron g-2

... By using the integration-by-parts identities[9, 52, 53] the contributions of all 4-loop vertex diagrams can be reduced to a linear combination of 334 master integrals belonging to 220 topologies. Due to the ... See full document

... and QED’ is presently based on theoretical predictions of exiting new science and at ELI-NP we plan to use the unprecedented laser power being installed to test these ...of electron-positron pairs from ... See full document

... Abstract. QED radiative corrections to the muon anomalous magnetic moment and elas- tic electron-proton scattering are ...elastic electron- proton at low energies are systematically treated within ... See full document

... order g~32, for the string tension to order g~28 and for the mass gap to order ...technique, contributions from diagrams spanning connected subsets of the lattice, or clusters, are determined, and ... See full document

... Recently, a new experiment, MUonE, has been pro- posed at CERN to measure the differential cross section of the elastic scattering of high-energy muons on atomic electrons as a function of the spacelike (negative) ... See full document

... field QED (e ff ectiveness of the electron- positron plasma (EPP) production from vacuum in di ff erent models of the semiclassical elec- tromagnetic field, radiation from EPP and other observable ... See full document

... W/cm 2 ), such as several of those comprising the Extreme Light Infrastructure [1], light-matter interactions are predicted to reach the new quantum electrodynamic (QED) plasma ...The QED processes ... See full document

... W/cm 2 ), such as several of those comprising the Extreme Light Infrastructure [1], light-matter interactions are predicted to reach the new quantum electrodynamic (QED) plasma ...The QED processes ... See full document

... ). As a comparison with the flat slab target, the source size is in- creased to a few microns, determined by the plasma area of laser hole boring. The increased size and decreased photon number at the peak angle causes ... See full document

... Another requirement for reaching very high accuracy is to measure all the relevant contributions to systematic uncertainties from the data themselves. An important ef- fect, which distinguishes the normalization ... See full document

... finite contributions which we denote by IV(a), IV(d) and ...two electron loops is denoted by IV(a0), the one with one muon and one electron loop and the coupling of the external photon to the ... See full document

... with n ≥ 1, i.e. corrections to the “naive factorization approximation" in which Z A ( f act) = 1. In Ref. [21] the non-perturbative estimate Z A ( f act) = 0.9 ± 0.1 has been obtained through the use of the axial ... See full document

... latter is a Euclidean-like asymptotic expansion which can be performed with the help of the program exp [30, 31]. The most complicated integrals which have to be evaluated are four-loop vacuum integrals which are well ... See full document

... order contributions from hadrons (quark loops) at low energy ...O(α 2 ), O(α 3 ), O(α 4 ); (b) Hadronic Light-by-Light (HLbL) scattering at O(α 3 ); (c) hadronic e ff ects at O (α G F m 2 μ ) ... See full document

... moduli spaces of such theories have been considered in [11]. Examples of abelian orbifolds have been detailed in [7, 10] while elegant extensions of ADE singularities to real dimension seven have been addressed in [8, ... See full document

... a g e general ...the g-r effects manifested in the four classical test experiments of ...Professor G ’t Hooft, concerning any new gravity theory that can not be a complete work without including a ... See full document

... The Electron transfer (ET) plays a central role in many physical, chemical (both organic and inorganic) and biological systems. The new area of molecular electronics depends critically on the understanding and the ... See full document

... The “Raman repump” technique outlined above can be used not only to load atoms into the cavity but also to determine the number of atoms present in real time. In order to explain this measurement, we first consider the ... See full document

... Figure 1.28 shows a Raman scan over the | 3, 0 i ↔ | 4, 0 i transition for a Rabi frequency of Ω = (2π)(50 kHz) and pulse duration of T = 100 µs. For this scan the atoms were prepared by optically pumping them into | 3, ... See full document

... Both the signal and control regions contain 50–60% top quark pair background and 20–30% W + jets background. The relative background composition is therefore similar in the signal and con- trol regions. Also the ... See full document