Talk page
Title:
Muon g-2 anomalies and GeV scale new physics
Speaker:
Abstract:
The 4.2 sigma discrepancy between the theoretical prediction for the muon g-2 and its experimental measurement is accompanied by other anomalies. Determinations of the hadronic cross section from KLOE and BaBar, a crucial input for the data-driven prediction, disagree by almost 3 sigma. Furthermore, the data-driven result disagrees with the most precise lattice determination by ~2 sigma. In this talk, I will discuss how all these discrepancies could be accounted for by a new boson produced resonantly around the KLOE centre of mass energy and decaying promptly in electron-positron or muon-antimuon pairs. This construction performs well also in the short, intermediate and long distance windows and does not affect the CMD-3 experimental result.
Link:
Workshop: