Speaker
Astrid Hiller Blin
(IFIC, University of Valencia)
Description
We present the calculation of the hyperon forward spin polarizability gamma0 using manifestly Lorentz covariant baryon chiral perturbation theory including the intermediate contribution of the isospin-3/2 states. As at the considered order the extraction of gamma0 is a pure prediction of chiral perturbation theory and does not depend on renormalization schemes, the obtained values are a good test for this theory. Our results have a very good agreement with the experimental data for nucleons. Therefore we extend our frame to hyperons to give predictions to their gamma0 values.
Primary author
Astrid Hiller Blin
(IFIC, University of Valencia)
Co-authors
Prof.
Thomas Gutsche
(University of Tuebingen)
Dr
Tim Ledwig
(University of Valencia)
Dr
Valeri Lyubovitskij
(University of Tuebingen)
