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 …

Decays of the neutral and long-lived η and η′ mesons provide a unique, flavor-conserving
laboratory to test low-energy Quantum Chromodynamics and search for new physics …

We employ a mathematical framework based on rational approximants in order to calculate
the pseudoscalar-pole piece of the hadronic light-by-light contribution to the anomalous …

Prospects for precise predictions of aµ in the Standard Model arxiv:2203.15810v1 [hep-ph] 29
Mar 2022 Page 1 Submitted to the Proceedings of the US Community Study on the Future of …

Within a dispersive approach to hadronic light-by-light scattering in the muon g-2, the
evaluation of the numerically dominant pseudoscalar-pole contribution involves the …

An intense 120 GeV proton beam incident on an extremely long iron target generates
enormous numbers of light-mass particles that also decay within that target. If one of these …

The η′ transition form factor is reanalyzed in view of the recent first observation by BESIII of
the Dalitz decay η′→ γ e+ e-in both space-and timelike regions at low and intermediate …

Using a continuum approach to the hadron bound-state problem, we calculate γ* γ→ η, η′
transition form factors on the entire domain of spacelike momenta, for comparison with …

The Dalitz decays η→ e+ e− γ and ω→ π 0 e+ e− have been measured in the γ p→ η p and
γ p→ ω p reactions, respectively, with the A2 tagged-photon facility at the Mainz Microtron …

The NA60 experiment studied low-mass muon pair production in proton–nucleus (p–A)
collisions using a 400 GeV proton beam at the CERN SPS. The low-mass dimuon spectrum …