Anomalous Moment Corrections to Transition Matrix Elements
نویسنده
چکیده
منابع مشابه
Three-Loop Chromomagnetic Interaction in HQET
We compute the three-loop QCD corrections to the quark chromomagnetic moment and thus obtain the matching coefficient and the anomalous dimension of the chromomagnetic interaction in HQET. As a byproduct we obtain the three-loop corrections to the quark anomalous magnetic moment.
متن کاملElectroweak corrections to the muon anomalous magnetic moment.
We employ an effective Lagrangian approach to derive the leading-logarithm two-loop electroweak contributions to the muon anomalous magnetic moment, a µ. We show that these corrections can be obtained using known results on the anomalous dimensions of composite operators. We confirm the result of Czarnecki et al. for the bosonic part and present the complete sin 2 θ W dependence of the fermioni...
متن کاملar X iv : h ep - p h / 95 12 36 9 v 3 1 3 M ar 1 99 6 Electroweak corrections to the muon anomalous magnetic moment
The bosonic two-loop electroweak radiative corrections to the muon’s anomalous magnetic moment, aμ ≡ (gμ − 2)/2, are presented. We find ∆a μ (2 loop bosonic)/a EW μ (1 loop) ≈ απ (
متن کاملLight-Cone Representation of the Spin and Orbital Angular Momentum of Relativistic Composite Systems
The matrix elements of local operators such as the electromagnetic current, the energy momentum tensor, angular momentum, and the moments of structure functions have exact representations in terms of light-cone Fock state wavefunctions of bound states such as hadrons. We illustrate all of these properties by giving explicit light-cone wavefunctions for the two-particle Fock state of the electro...
متن کاملRacoonWW1.3: A Monte Carlo program for four-fermion production at e+e− colliders
We present the Monte Carlo generator RacoonWW that computes cross sections to all processes e+e− → 4f and e+e− → 4fγ and calculates the complete O(α) electroweak radiative corrections to e+e− → WW → 4f in the electroweak Standard Model in double-pole approximation. The calculation of the tree-level processes e+e− → 4f and e+e− → 4fγ is based on the full matrix elements for massless (polarized) ...
متن کامل