Hadronic Contribution to the muon $g-2$ factor

Abstract

The lowest order hadronic contribution to the $g-2$ factor of the muon is analyzed in the framework of the operator product expansion at short distances, and a QCD finite energy sum rule designed to quench the role of the $e^{+}{e}^{-}$ data. This procedure reduces the discrepancy between experiment and theory, $\Delta a_{\mu }\equiv a_{\mu }^{EXP}-a_{\mu }^{SM}$, from $\Delta a_{\mu }=28.7(8.0)\times 10^{-10}$ to $\Delta a_{\mu }=19.2(8.0)\times 10^{-10}$, i.e. without changing the uncertainty.

Revised version with additional paragraphs

References in corpus (34)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Final Report of the Muon E821 Anomalous Magnetic Moment Measurement at BNL
• Reevaluation of the Hadronic Contributions to the Muon g-2 and to alpha(MZ)
• (g-2)_mu and alpha(M_Z^2) re-evaluated using new precise data
• RunDec: a Mathematica package for running and decoupling of the strong coupling and quark masses
• Hadronic Z- and tau-Decays in Order alpha_s^4
• Review of lattice results concerning low energy particle physics
• Branching ratios and spectral functions of tau decays: final ALEPH measurements and physics implications
• Measurements of the Cross Section for e+e- -> hadrons at Center-of-Mass Energies from 2 to 5 GeV
• Precise Measurement of the e+ e- --> pi+ pi- (gamma) Cross Section with the Initial-State Radiation Method at BABAR
• Short-distance tachyonic gluon mass and 1/Q^2 corrections
• Measurement of sigma(e+ e- -> pi+ pi-) from threshold to 0.85 GeV^2 using Initial State Radiation with the KLOE detector
• Higher-Order Hadronic Contributions to the Anomalous Magnetic Moment of Leptons
• Flavour-symmetry breaking of the quark condensate and chiral corrections to the Gell-Mann-Oakes-Renner relation
• Precision measurement of $\sigma (e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}\gamma )/\sigma (e^{+}{e}^{-}\to {\mu }^{+}{\mu }^{-}\gamma )$ and determination of the ${\pi }^{+}{\pi }^{-}$ contribution to the muon anomaly with the KLOE detector
• The muon g-2 and the bounds on the Higgs boson mass
• $R$ value measurements for $e^{+}{e}^{-}$ annihilation at 2.60, 3.07 and 3.65 GeV
• Possible duality violations in tau decay and their impact on the determination of alpha_s
• QCD vacuum condensates from tau-lepton decay data
• Quadratic Mass Corrections of Order ${\alpha }_s^3{m}_q^2/s$ to the Decay Rate of Z- and W- Bosons
• Chiral condensates from tau decay: a critical reappraisal
• Strange quark mass from Finite Energy QCD sum rules to five loops
• Is there evidence for dimension-two corrections in QCD two-point functions?
• Up and down quark masses from Finite Energy QCD sum rules to five loops
• Confronting electron-positron annihilation into hadrons with QCD: an operator product expansion analysis
• Strange quark condensate from QCD sum rules to five loops
• Renormalon Subtraction from the Average Plaquette and the Gluon Condensate
• Hadronic contribution to the muon g-2: a theoretical determination
• Confronting QCD with the experimental hadronic spectral functions from tau-decay
• Corrections to the $\mathbf{SU}(3)\times \mathbf{SU}(3)$ Gell-Mann-Oakes-Renner relation and chiral couplings $L_8^r$ and $H_2^r$
• Ratio of strange to non-strange quark condensates in QCD
• Quark masses in QCD: a progress report
• The Vacuum Polarization: Power Corrections beyond OPE ?

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• TAU2014 Opening Talk