20 citations · 20 across the 1 of their papers we have counts for
4 papers
The electromagnetic form factors of the transition from the spin-3/2 Sigma to the Lambda hyperon
Olov Junker, Stefan Leupold, Elisabetta Perotti +1
The three electromagnetic form factors for the transition from a 3/2+ Sigma* hyperon to the ground-state Lambda hyperon are studied. At low energies, combinations of the transition…
Polarization observables in annihilation to a baryon-antibaryon pair
Elisabetta Perotti, Göran Fäldt, Andrzej Kupść +2
Using the helicity formalism of Jacob and Wick we derive spin density matrices of baryon antibaryon pairs produced in annihilation. We consider the production of pairs wit…
Extraction of Polarization Parameters in the Reaction
Elisabetta Perotti
A method to extract the polarization of hyperons produced via the strong interaction is presented. Assuming they are spin 3/2 particles, the corresponding spin density matrix c…
Constraining P and CP violation in the main decay of the neutral Sigma hyperon
Shankar Sunil Nair, Elisabetta Perotti, Stefan Leupold
On general grounds based on quantum field theory the decay amplitude for consists of a parity conserving magnetic and a parity violating electric dipole transition mom…