The muon g-2 and the bounds on the Higgs boson mass

Abstract

After a brief review of the muon g-2 status, we analyze the possibility that the present discrepancy between experiment and the Standard Model (SM) prediction may be due to hypothetical errors in the determination of the hadronic leading-order contribution to the latter. In particular, we show how an increase of the hadro-production cross section in low-energy e^+e^- collisions could bridge the muon g-2 discrepancy, leading however to a decrease on the electroweak upper bound on M_H, the SM Higgs boson mass. That bound is currently M_H < ~ 150GeV (95%CL) based on the preliminary top quark mass M_t = 172.6(1.4)GeV and the recent determination Δα_{\rm had}^{(5)}(M_Z) = 0.02768(22), while the direct-search lower bound is M_H > 114.4GeV (95%CL). By means of a detailed analysis we conclude that this solution of the muon g-2 discrepancy is unlikely in view of current experimental error estimates. However, if this turns out to be the solution, the 95%CL upper bound on M_H is reduced to about 130GeV which, in conjunction with the experimental lower bound, leaves a narrow window for the mass of this fundamental particle.

arXiv comment8 pages, 3 figures. v2: minor changes, references added

References in corpus (64)

• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Cosmological Parameters 2006
• Final Report of the Muon E821 Anomalous Magnetic Moment Measurement at BNL
• Search for the Standard Model Higgs Boson at LEP
• Measurement of the Negative Muon Anomalous Magnetic Moment to 0.7 ppm
• Towards High-Precision Predictions for the MSSM Higgs Sector
• Refinements in electroweak contributions to the muon anomalous magnetic moment
• Hadronic light-by-light scattering contribution to the muon anomalous magnetic moment revisited
• Precise Measurement of the Positive Muon Anomalous Magnetic Moment
• The analytical value of the electron (g-2) at order alpha^3 in QED
• The Muon Anomalous Magnetic Moment: A Harbinger For "New Physics"
• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.7 ppm
• Hadronic contributions to $(g-2)$ of the leptons and to the effective fine structure constant $\alpha (M_Z^2)$
• Hadronic light-by-light corrections to the muon g-2: the pion-pole contribution
• Precise Prediction for the W-Boson Mass in the Standard Model
• Updated Estimate of the Muon Magnetic Moment Using Revised Results from e+e- Annihilation
• Muon g-2: Review of Theory and Experiment
• Electroweak corrections to the muon anomalous magnetic moment
• Improved predictions for g-2 of the muon and α_{\rm QED}(M_Z^2)
• The Muon Magnetic Moment and Supersymmetry
• Reanalysis of Hadronic Cross Section Measurements at CMD-2
• Hadronic light-by-light scattering contribution to the muon g-2: an effective field theory approach
• High-statistics measurement of the pion form factor in the rho-meson energy range with the CMD-2 detector
• Confronting Spectral Functions from e+e- Annihilation and tau Decays: Consequences for the Muon Magnetic Moment
• Measurement of $\sigma (e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}\gamma )$ and extraction of $\sigma (e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-})$ below 1 {\rm GeV} with the KLOE detector
• Update of the e^+e^-\toπ^+π^- cross section measured by SND detector in the energy region 400<\sqrt{s}<1000 MeV
• Higher-Order Hadronic Contributions to the Anomalous Magnetic Moment of Leptons
• The Standard Model Prediction of the Muon Anomalous Magnetic Moment
• Electroweak Fermion-loop Contributions to the Muon Anomalous Magnetic Moment
• The hadronic contributions to the anomalous magnetic moment of the muon
• Study of e+e- --> pi+ pi- pi0 process using initial state radiation with BABAR
• Electroweak two-loop corrections to the effective weak mixing angle
• The $\epem\toπ^+π^-π^+π^-$, $K^{+}{K}^{-}{\pi }^{+}{\pi }^{-}$, and $K^{+}{K}^{-}{K}^{+}{K}^{-}$ Cross Sections at Center-of-Mass Energies 0.5--4.5 \gev Measured with Initial-State Radiation
• Improved ${\alpha }^4$ Term of the Electron Anomalous Magnetic Moment
• Revised value of the eighth-order electron g-2
• Revised value of the eighth-order QED contribution to the anomalous magnetic moment of the electron
• Isospin Violation and the Magnetic Moment of the Muon
• The hadronic contribution to (g-2) of the muon
• Radiative tau decay and the magnetic moment of the muon
• The Tenth-Order QED Contribution to the Lepton g-2: Evaluation of Dominant ${\alpha }^5$ Terms of Muon g-2
• Complete Two-Loop Electroweak Fermionic Corrections to sin^2(theta_eff) and Indirect Determination of the Higgs Boson Mass
• Improved ${\alpha }^4$ Term of the Muon Anomalous Magnetic Moment
• Measurements of the parameters of the $\varphi (1020)$ resonance through studies of the processes $e^{+}{e}^{-}\to K^{+}{K}^{-}$, $K_S{K}_L$ and ${\pi }^{+}{\pi }^{-}{\pi }^0$
• Study of the process $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{\pi }^0$ in the energy region $\sqrt[]{s}$ below 0.98 GeV
• The Hadronic Light-by-Light Contribution to the Muon Anomalous Magnetic Moment: Where do we stand?
• Precision measurements of sigma_hadronic for alpha_eff(E) at ILC energies and (g-2)_mu
• Precise mass-dependent QED contributions to leptonic g-2 at order alpha^2 and alpha^3
• Rhad: A program for the evaluation of the hadronic R-ratio in the perturbative regime of QCD
• Combination of CDF and D0 Results on W Boson Mass and Width
• The Role of M(W) in Precision Studies of the Standard Model
• Two-loop heavy top corrections to the Z boson partial widths
• The Dipion Mass Spectrum In e+e- Annihilation and tau Decay: A Dynamical (rho0, omega, phi) Mixing Approach
• Long-distance radiative corrections to the di-pion tau lepton decay
• Experimental study of the e+e- -> pi0 gamma process in the energy region sqrt(s)=0.60-0.97 GeV
• Low energy hadronic contribution to the QED vacuum polarization
• Cross section of the reaction $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{\pi }^{+}{\pi }^{-}$ below 1 GeV at CMD-2
• Study of the Process $e^{+}{e}^{-}\to K_L^0{K}_S^0$ in the C.M.Energy Range 1.05-1.38 GeV with CMD-2
• Electron, muon and tau magnetic moments: a theoretical update
• Total Cross Section of the Process e+e- -> pi+pi-pi+pi- in the C.M.Energy Range 980-1380 MeV
• Simple Formulae for Sin^2 theta_eff^lept, M_W, Gamma_l, and their Physical Applications
• Reconsidered estimates of the 10th order QED contributions to the muon anomaly
• The width difference of rho vector mesons
• Status of the Standard Model Prediction of the Muon g-2
• Search for fermiophobic Higgs bosons in final states with photons at LEP 2

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