Speaker
Hailin Song
Description
At BESIII, the electromagnetic form factors (EMFFs) and the pair production cross sections of various baryons have been studied. The proton EMFF ratio |GE/GM| is determined precisely and line-shape of |GE| is obtained for the first time. The recent results of neutron EMFFs at BESIII show great improvement comparing with previous experiments. Cross sections of various baryon pairs ($\Lambda, \Sigma, \Xi, \Lambda_c$) are studied from their thresholds. Anomalous enhancement behavior on the $\Lambda$ and $\Lambda_c$ pair are observed. The relative phase of EMFFs for $\Lambda$ and $\Sigma^+$ are measured for the first time.
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Author
Hailin Song
Co-author
Fabrizio Umberto Bianchi
(INFN - Torino)