Speaker
Description
As part of an ongoing effort to understand the source of the discrepancy between data-driven and lattice determinations of the HVP contribution to a_mu, the anomalous magnetic moment of the muon, we perform data-driven determinations of the light-quark-connected and strange-plus-disconnected contributions to a number of "window" contributions to a_mu, including the RBC/UKQCD intermediate window contribution, and compare these to recent lattice determinations of the same quantities, where available. We find a large discrepancy with 8 recent high-precision lattice determinations of the RBC/UKQCD intermediate window quantity. We also discuss the potential impact of recent CMD-3 2-pion cross-section measurements, which differ significantly from those of earlier experiments, on the observed discrepancies between lattice determinations and our data-driven results.
Name of collaboration or list of co-authors
Genessa Benton, Diogo Boito, Maarten Golterman, Alex Keshavarzi and Santiago Peris
