Electroweak corrections to the muon anomalous magnetic moment
Abstract
Bosonic twoloop electroweak radiative corrections to the muon{close_quote}s anomalous magnetic moment, {ital a}{sub {mu}}{equivalent_to}({ital g}{sub {mu}}{minus}2)/2, are presented. We find {Delta}{ital a}{sub {mu}}{sup EW} (2 loop bosonic)/{ital a}{sub {mu}}{sup EW} (1 loop){approx_equal}({alpha}/{pi}){times}[{minus}3.6 ln ({ital M}{sup 2}{sub {ital W}}/{ital m}{sub {mu}}{sup 2})+0.10]{approx_equal}{minus}0.11 for {ital M}{sub Higgs}{approx_equal}250 GeV. Combining that result with our previous twoloop fermionic calculation, we obtain an overall 22.6{percent} reduction in {ital a}{sub {mu}}{sup EW} from 195{times}10{sup {minus}11} to 151(4){times}10{sup {minus}11}. Implications for the full standard model prediction and an upcoming high precision measurement of {ital a}{sub {mu}} are briefly discussed. We also give the twoloop electroweak corrections to the anomalous magnetic moments of electron and tau lepton; they result in a reduction of the oneloop estimates by 35{percent} and 15{percent}, respectively. {copyright} {ital 1996 The American Physical Society.}
 Authors:

 Institut fuer Theoretische Teilchenphysik, Universitaet Karlsruhe, D76128 Karlsruhe (Germany)
 Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)
 Publication Date:
 Research Org.:
 Brookhaven National Lab. (BNL), Upton, NY (United States)
 OSTI Identifier:
 285643
 DOE Contract Number:
 AC0276CH00016
 Resource Type:
 Journal Article
 Journal Name:
 Physical Review Letters
 Additional Journal Information:
 Journal Volume: 76; Journal Issue: 18; Other Information: PBD: Apr 1996
 Country of Publication:
 United States
 Language:
 English
 Subject:
 66 PHYSICS; MUONS; MAGNETIC MOMENTS; RADIATIVE CORRECTIONS; STANDARD MODEL; ELECTRONS; TAU PARTICLES; QUANTUM ELECTRODYNAMICS; SUPERSYMMETRY; SUPERGRAVITY; LOOPS; ANOMALOUS PROPERTIES
Citation Formats
Czarnecki, A, Krause, B, and Marciano, W J. Electroweak corrections to the muon anomalous magnetic moment. United States: N. p., 1996.
Web. doi:10.1103/PhysRevLett.76.3267.
Czarnecki, A, Krause, B, & Marciano, W J. Electroweak corrections to the muon anomalous magnetic moment. United States. doi:10.1103/PhysRevLett.76.3267.
Czarnecki, A, Krause, B, and Marciano, W J. Mon .
"Electroweak corrections to the muon anomalous magnetic moment". United States. doi:10.1103/PhysRevLett.76.3267.
@article{osti_285643,
title = {Electroweak corrections to the muon anomalous magnetic moment},
author = {Czarnecki, A and Krause, B and Marciano, W J},
abstractNote = {Bosonic twoloop electroweak radiative corrections to the muon{close_quote}s anomalous magnetic moment, {ital a}{sub {mu}}{equivalent_to}({ital g}{sub {mu}}{minus}2)/2, are presented. We find {Delta}{ital a}{sub {mu}}{sup EW} (2 loop bosonic)/{ital a}{sub {mu}}{sup EW} (1 loop){approx_equal}({alpha}/{pi}){times}[{minus}3.6 ln ({ital M}{sup 2}{sub {ital W}}/{ital m}{sub {mu}}{sup 2})+0.10]{approx_equal}{minus}0.11 for {ital M}{sub Higgs}{approx_equal}250 GeV. Combining that result with our previous twoloop fermionic calculation, we obtain an overall 22.6{percent} reduction in {ital a}{sub {mu}}{sup EW} from 195{times}10{sup {minus}11} to 151(4){times}10{sup {minus}11}. Implications for the full standard model prediction and an upcoming high precision measurement of {ital a}{sub {mu}} are briefly discussed. We also give the twoloop electroweak corrections to the anomalous magnetic moments of electron and tau lepton; they result in a reduction of the oneloop estimates by 35{percent} and 15{percent}, respectively. {copyright} {ital 1996 The American Physical Society.}},
doi = {10.1103/PhysRevLett.76.3267},
journal = {Physical Review Letters},
number = 18,
volume = 76,
place = {United States},
year = {1996},
month = {4}
}