Jul 4 – 11, 2018
COEX, SEOUL
Asia/Seoul timezone

Study of $e^+e^-\to e^+e^- \eta'$ in the double-tag mode at BABAR

Jul 7, 2018, 12:00 PM
15m
202 (COEX, Seoul)

202

COEX, Seoul

Parallel Strong Interactions and Hadron Physics Strong Interactions and Hadron Physics

Speaker

Mr Evgeny Kozyrev (Budker Institute of Nuclear Physics)

Description

We study the process $e^+e^-\to e^+e^- \eta'$ in the double-tag mode and measure for the first time the $\gamma^{\star}\gamma^{\star} \to \eta'$ transition form factor $F_{\eta'}(Q_1^2, Q_2^2)$ in the momentum-transfer
range $2 < Q_1^2, Q_2^2 < 60$ GeV$^2$. The analysis is based on data with an integrated luminosity 469 fb$^{-1}$ collected at the PEP-II $e^+e^-$ collider with the BABAR detector at center-of-mass energies near 10.6 GeV. The results for the form factor are compared with the predictions based on pQCD and VMD.

Primary authors

Fabio Anulli (Sapienza Universita e INFN, Roma I (IT)) Mr Evgeny Kozyrev (Budker Institute of Nuclear Physics)

Presentation materials