26-30 July 2021
Zoom
Europe/Berlin timezone

Recent result of nucleon time-like form factors at BESIII

29 Jul 2021, 16:30
15m
Zoom

Zoom

Parallel session talk QCD and Hadronic Physics T06: QCD and Hadronic Physics

Speaker

Dr Marco Destefanis (University of Torino and INFN)

Description

Nucleons are one of the most fundamental building blocks of ordinary matter, yet their internal structure and dynamics are still not fully understood. Electromagnetic form factors allow to investigate fundamental properties of the nucleon. The BESIII collaboration has studied the time-like form factors of the proton using the energy scan and the ISR technique. The |GE/GM| ratio is obtained with a precision comparable to the investigations of the space-like EMFF in electron proton scattering. The effective form factor of the neutron is measured with highest precision using the scan method. For both nucleons, an intriguing periodic behavior of effective form factors lineshape is observed. In this presentation the latest results on nucleon form factors at BESIII are discussed.

First author Zhiqing Liu
Collaboration / Activity BESIII
Email z.liu@sdu.edu.cn

Primary author

Zhiqing Liu (Shandong University)

Presentation Materials