Bai-Long Hoid

activity

20182022

collaborators

7 papers

hep-ph2022

Chiral extrapolation of hadronic vacuum polarization and isospin-breaking corrections

Martin Hoferichter, Gilberto Colangelo, Bai-Long Hoid +4

By far the biggest contribution to hadronic vacuum polarization (HVP) arises from the two-pion channel. Its quark-mass dependence can be evaluated by combining dispersion relations…

hep-ph2022

Prospects for precise predictions of $a_{μ}$ 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 $g - 2$ Theory Initiative to…

hep-ph2020

Hadronic vacuum polarization and vector-meson resonance parameters from $e^{+} e^{-} \to π^{0} γ$

Bai-Long Hoid, Martin Hoferichter, Bastian Kubis

We study the reaction $e^{+} e^{-} \to π^{0} γ$ based on a dispersive representation of the underlying $π^{0} \to γ γ^{*}$ transition form factor. As a first application, we evaluate the contributi…

hep-ph2020

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…

hep-ph2019

Three-pion contribution to hadronic vacuum polarization

Martin Hoferichter, Bai-Long Hoid, Bastian Kubis

We address the contribution of the $3 π$ channel to hadronic vacuum polarization (HVP) using a dispersive representation of the $e^{+} e^{-} \to 3 π$ amplitude. This channel gives the seco…

hep-ph2018

Dispersion relation for hadronic light-by-light scattering: pion pole

Martin Hoferichter, Bai-Long Hoid, Bastian Kubis +2

The pion-pole contribution to hadronic light-by-light scattering in the anomalous magnetic moment of the muon $(g - 2)_{μ}$ is fully determined by the doubly-virtual pion transition fo…