14th International Workshop on e⁺e⁻ collisions from Phi to Psi 2026

Session

Baryon/Hyperon Physics

11 Jun 2026, 09:00

Scuola Normale Superiore, Aula Dini, Palazzo del Castelletto (Pisa)

55. Spin effects in baryon-antibaryon pair production in electron-positron annihilation

Andrzej Kupsc (NCBJ , Warsaw & Uppsala Univerity)

11/06/2026, 09:00

I will give an overview of spin polarisation and correlation effects in baryon-antibaryon pair production at electron-positron colliders. General formalism and methods for measuring the polarisation of the baryons and determining the properties of the production reactions will be introduced. Precision studies of the spin properties were enabled, thanks to millions of hyperon-antihyperon pairs...

43. Hyperon physics at BESIII

Weiping Wang (JGU Mainz)

11/06/2026, 09:25

With the large datasets on 𝑒+𝑒−-annihilation at the 𝐽/𝜓 and 𝜓(3686) resonances collected at the BESIII experiment, multi-dimensional analyses making use of polarization and entanglement can shed new light on the production and decay properties hyperon-antihyperon pairs. In a series of recent studies performed at BESIII, significant transverse polarization of the (anti)hyperons has been...

3. Recent results of baryon electromagnetic form factors at BESIII

Hailin Song

11/06/2026, 09:45

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,...