Conveners
HVP LO theo/exp.
- Andrzej Kupsc (NCBJ , Warsaw & Uppsala Univerity)
HVP LO theo/exp.
- Graziano Venanzoni (University of Liverpool and INFN Pisa)
HVP LO theo/exp.
- Fedor Ignatov (University of Liverpool)
HVP LO theo/exp.
- There are no conveners in this block
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Aidan Wright (University of Liverpool)08/06/2026, 11:00
Measurements of the anomalous magnetic moment of the muon (muon $g-2$) are among the most precise tests of the Standard Model, but efforts to achieve an equally precise theoretical prediction are presently impeded. Significant tensions within the hadronic data inputs to the dispersive approach, and further tensions between dispersive and newer lattice values, are currently still unexplained. I...
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Alexander Nesterenko08/06/2026, 11:25
The complete set of six relations, which mutually express the spacelike and
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timelike kernel functions for the hadronic vacuum polarization contributions
to the muon anomalous magnetic moment $a^{\text{HVP}}_{\mu}$ in terms of each
other, is obtained. By making use of the derived relations the explicit
expression for the next-to-leading order spacelike kernel function, which
enters the... -
Evgeny Solodov (Budker Institute of Nuclear Physics, Novosibirsk, Russia)08/06/2026, 11:45
The CMD-3 detector continues taking data at the VEPP-2000 collider. Total collected integrated luminosity exceeded 1 fb-1. At the moment next energy scan around Rho-resonance is in progress with about factor of three in the luminisity integral compare to the published results on pion form factor. Many other final state are under study in the e+e- energy range up to 2 GeV. Large accumulated...
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Andrey Kupich (BINP)08/06/2026, 12:10
We present studies that are based on the 1 fb$^{-1}$ data, and acquired
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by the SND detector with $e^+e^-$-collisions at VEPP-2000 in the
$\sqrt{s}$=0.3–2 GeV energy range. Our results of high precision
measurements of the
$e^+e^- \to \pi^+\pi^-$ and $e^+e^- \to \pi^+\pi^-\pi^0$
cross sections and the calculation of their Hadronic Contribution to the
Muon (g-2) are presented. Also we... -
Lorenzo PUNZI (By SerSe - Lorenzo PUNZI)08/06/2026, 14:50
The uncertainty of the Standard Model dispersive prediction of the muon anomalous magnetic moment $a_\mu$ is limited by the precision of the leading-order hadronic vacuum polarization contribution $a_\mu^{HLO}$. The KLOE experiment at the DA$\Phi$NE electron-positron collider has already provided some of the most precise measurements of the two-pion contribution to $a_\mu^{HLO}$. A more...
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Isabella Garzia (INFN - Ferrara and University of Ferrara)08/06/2026, 15:15
New $BABAR$ results, based on the full $BABAR$ dataset, are presented on the processes $e^+e^-\to \pi^+\pi^-(\gamma)$ and $e^+e^-\to \mu^+\mu^-(\gamma)$ using the Initial State Radiation method at the PEP II collider. To reduce systematic uncertainties the measurement of the $\pi^+\pi^-$ cross section is obtained through the ratio with $\mu^+\mu^-$ and the final state includes additional...
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Giorgia Cacciola (University of Liverpool)08/06/2026, 15:40
The MUonE experiment, currently under preparation at CERN, aims to measure the running of the electromagnetic coupling $\alpha$ in the elastic $\mu e$ scattering process, from which the dominant hadronic contribution to the anomalous magnetic moment of the muon can be extracted. The method is based on collisions of 160 GeV muons from CERN’s high‑intensity M2 beam with thin, fixed targets made...
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Simon Kuberski (CERN)08/06/2026, 16:05
The hadronic vacuum polarization contribution currently dominates the uncertainty of the Standard Model prediction for the muon anomalous magnetic moment.
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In recent years, lattice QCD has reached sub-percent precision for the leading hadronic vacuum polarization contribution and now provides the basis of the updated Standard Model prediction of the muon $g{-}2$.
This talk will review the... -
Siyuan Li (Johannes Gutenberg-Universität Mainz (JGU))08/06/2026, 17:00
We note that the hadronic contributions to $a_e$ and $a_\mu$ are strongly correlated, which potentially allows to reduce the uncertainties associated with higher energy contributions (and address the current discrepancy between lattice and data-driven evaluations) by improved measurements of a_e and the fine-structure constant.
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Alessandro Lupo (Aix-Marseille Univ. & CNRS)11/06/2026, 15:30
The Muon g−2 Experiment at Fermi National Accelerator Laboratory has recently concluded its six-year data-taking campaign, delivering a measurement of the muon's anomalous magnetic moment with an unprecedented precision of 0.127 parts per billion — one of the most stringent tests of the Standard Model ever performed. However, to fully leverage this experimental tour de force in the search for...
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