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Hadronic vacuum polarization: comparing lattice QCD and data-driven results in systematically improvable ways
Michel Davier, Zoltan Fodor, Antoine Gerardin +7
The precision with which hadronic vacuum polarization (HVP) is obtained determines how accurately important observables, such as the muon anomalous magnetic moment, a_μ, or the low…
The Euclidean Adler Function and its Interplay with and
M. Davier, D. Díaz-Calderón, B. Malaescu +3
Three different approaches to precisely describe the Adler function in the Euclidean regime at around are available: dispersion relations based on the hadronic…
Prospects for precise predictions of in the Standard Model
G. Colangelo, M. Davier, A. X. El-Khadra +79
We discuss the prospects for improving the precision on the hadronic corrections to the anomalous magnetic moment of the muon, and the plans of the Muon Theory Initiative to…
Mini-Proceedings of the STRONG2020 Virtual Workshop on "Space-like and Time-like determination of the Hadronic Leading Order contribution to the Muon "
G. Abbiendi, A. Arbuzov, Sw. Banerjee +31
The mini-proceedings of the STRONG2020 Virtual Workshop "Space-like and Time-like determination of the Hadronic Leading Order contribution to the Muon ", November 24--26 2021,…
The anomalous magnetic moment of the muon in the Standard Model
T. Aoyama, N. Asmussen, M. Benayoun +129
We review the present status of the Standard Model calculation of the anomalous magnetic moment of the muon. This is performed in a perturbative expansion in the fine-structure con…
A new evaluation of the hadronic vacuum polarisation contributions to the muon anomalous magnetic moment and to
M. Davier, A. Hoecker, B. Malaescu +1
We reevaluate the hadronic vacuum polarisation contributions to the muon magnetic anomaly and to the running of the electromagnetic coupling constant at the -boson mass. We incl…
Reevaluation of the hadronic vacuum polarisation contributions to the Standard Model predictions of the muon g-2 and alpha(mZ) using newest hadronic cross-section data
Michel Davier, Andreas Hoecker, Bogdan Malaescu +1
We reevaluate the hadronic vacuum polarisation contributions to the muon magnetic anomaly and to the running of the electromagnetic coupling constant at the Z-boson mass. We includ…
Update of the Hadronic Vacuum Polarisation Contribution to the muon g-2
Michel Davier
Precise data on e^+e^- to hadrons have recently become available and are used to compute the lowest-order hadronic vacuum polarisation contribution to the muon magnetic anomaly thr…
Reevaluation of the Hadronic Contributions to the Muon g-2 and to alpha(MZ)
Michel Davier, Andreas Hoecker, Bogdan Malaescu +1
We reevaluate the hadronic contributions to the muon magnetic anomaly, and to the running of the electromagnetic coupling constant at the Z-boson mass. We include new pi+pi- cross-…
New results on the hadronic vacuum polarization to the muon g-2
M. Davier
Results on the lowest-order hadronic vacuum polarization contribution to the muon magnetic anomaly are presented. They are based on the latest published experimental data used as i…
Reevaluation of the hadronic contribution to the muon magnetic anomaly using new e+e- -> pi+pi- cross section data from BABAR
M. Davier, A. Hoecker, B. Malaescu +2
Using recently published, high-precision pi+pi- cross section data by the BABAR experiment from the analysis of e+e- events with high-energy photon radiation in the initial state,…
Confronting Spectral Functions from e+e- Annihilation and tau Decays: Consequences for the Muon Magnetic Moment
M. Davier, S. Eidelman, A. Hocker +1
Vacuum polarization integrals involve the vector spectral functions which can be experimentally determined from two sources: (i) e+e- annihilation cross sections and (ii) hadronic…
Strange Quark Mass from the Invariant Mass Distribution of Cabibbo-Suppressed Tau Decays
S. Chen, M. Davier, E. Gamiz +3
Quark mass corrections to the tau hadronic width play a significant role only for the strange quark, hence providing a method for determining its mass. The experimental input is th…
Evaluation of and
Michel Davier
This talk summarizes the recent developments in the evaluation of the leading order hadronic contributions to the running of the QED fine structure constant , at $s=M_{\rm Z}…
New Results on the Hadronic Contributions to alpha(M_Z) and to (g-2)_mu
M. Davier, A. Hocker
We reevaluate the dispersion integrals of the leading order hadronic contributions to the running of the QED fine structure constant alpha(s) at s=M_Z^2, and to the anomalous magne…
Finite Energy Chiral Sum Rules and Tau Spectral Functions
M. Davier, L. Girlanda, A. Hoecker +1
A combination of finite energy sum rule techniques and Chiral Perturbation Theory (ChPT) is used in order to exploit recent ALEPH data on the non-strange tau vector (V) and axial-v…
Improved Determination of alpha_QED(M_Z^2) and the Anomalous Magnetic Moment of the Muon
M. Davier, A. Hoecker
We reevaluate the hadronic contribution to the running of the QED fine structure constant alpha(s) at s = M_Z^2. We use data from e+e- annihilation and tau decays at low energy and…
Improved Determination of the Hadronic Contribution to the Muon (g-2) and to alpha(M_Z**2) Using new Data from Hadronic Tau Decays
R. Alemany, M. Davier, A. Hocker
We have reevaluated the hadronic contribution to the anomalous magnetic moment of the muon (g-2) and to the running of the QED fine structure constant alpha(s) at s=M_Z**2. We inco…