Jul 6 – 13, 2022
Bologna, Italy
Europe/Rome timezone

Light Meson decays at BESIII

Jul 8, 2022, 7:05 PM
1h 25m
Bologna, Italy

Bologna, Italy

Palazzo della Cultura e dei Congressi
Poster Strong interactions and Hadron Physics Poster Session

Speaker

Francesca De Mori (Università degli Studi di Torino e Istituto Nazionale di Fisica Nucleare)

Description

The world’s largest sample of J/ψ events accumulated at the BESIII detector offers a
unique opportunity to investigate η and η′ physics via two body J/ψ radiative or
hadronic decays. In recent years the BESIII experiment has made significant
progresses in η/η′ decays. A selection of recent highlights in light meson
spectroscopy at BESIII are reviewed in this report, including the observation of η′
→ π+π−μ+μ−, observation of the cusp effect in η′ →π0π0η, search for CP-violation in
η′ → π+π−e+e−, as well as the precision measurement of the branching fraction of η
decays.

In-person participation Yes

Primary authors

Beijiang Liu (Institute of High Energy Physics) Fabrizio Bianchi (Istituto Nazionale di Fisica Nucleare) Francesca De Mori (Università degli Studi di Torino e Istituto Nazionale di Fisica Nucleare)

Presentation materials