KLOE-nxt: towards a new measurement of the two-pion contribution to the anomalous magnetic moment of the muon

8 Jun 2026, 14:50
25m
Scuola Normale Superiore, Aula Dini, Palazzo del Castelletto (Pisa)

Scuola Normale Superiore, Aula Dini, Palazzo del Castelletto

Pisa

Via del Castelletto, 11, 56126 Pisa PI

Speaker

Lorenzo PUNZI (By SerSe - Lorenzo PUNZI)

Description

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 precise determination of this term is essential to clarify the long standing tension between the SM dispersive prediction of $a_\mu$ and its experimental measurements. This talk will present preliminary results from a new ongoing analysis (KLOE-nxt), which aims to improve the precision of the two-pion contribution by exploiting a previously unused KLOE dataset with significantly higher statistics compared to those employed in earlier KLOE measurements.

Are you an early career researcher? Yes, a PhD student

Author

Lorenzo PUNZI (By SerSe - Lorenzo PUNZI)

Presentation materials