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 (14)

• 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
• Hadronic Z- and tau-Decays in Order alpha_s^4
• Precise Measurement of the e+ e- --> pi+ pi- (gamma) Cross Section with the Initial-State Radiation Method at BABAR
• Measurement of sigma(e+ e- -> pi+ pi-) from threshold to 0.85 GeV^2 using Initial State Radiation with the KLOE detector
• 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
• Possible duality violations in tau decay and their impact on the determination of alpha_s
• Strange quark mass from Finite Energy QCD sum rules to five loops
• Up and down quark masses from Finite Energy QCD sum rules to five loops
• Strange quark condensate from QCD sum rules to five loops
• Renormalon Subtraction from the Average Plaquette and the Gluon Condensate
• Corrections to the $\mathbf{SU}(3)\times \mathbf{SU}(3)$ Gell-Mann-Oakes-Renner relation and chiral couplings $L_8^r$ and $H_2^r$
• Confronting QCD with the experimental hadronic spectral functions from tau-decay

Cited by in corpus (4)

• Anomalous magnetic moment of the muon, a hybrid approach
• Muon g-2 through a flavor structure on soft SUSY terms
• Theoretical determination of the hadronic (g-2) of the muon
• TAU2014 Opening Talk