Speaker
Francesco Rosini
(Istituto Nazionale di Fisica Nucleare)
Description
Recently, the BESIII collaboration has produced new data for the $\Lambda$ baryon electric and magnetic form factor's ratio $G_E^\Lambda/G_M^\Lambda$ with high accuracy. By assuming the analyticity of the baryon form factors, a dispersive procedure can be used can be used to determine the modulus and the phase determination of the form factor's ratio, based on a set of theoretical an experimental constraints. Different classes of solutions are taken into account, each with its probability of occurrence. The results are used to gain insight on interesting properties of the baryon, such as the number of zeroes on the electric form factor $G_E^\Lambda$ and the charge radius of the $\Lambda$ baryon.
Primary author
Francesco Rosini
(Istituto Nazionale di Fisica Nucleare)
Co-author
Prof.
Simone Pacetti
(Istituto Nazionale di Fisica Nucleare)
