June 29, 2015 to July 3, 2015
Europe/Rome timezone

Hyperon forward spin polarizability gamma0 in baryon chiral perturbation theory

Jul 2, 2015, 1:10 PM
1h 20m
Hall (Building E, Polo Fibonacci, Pisa)


Building E, Polo Fibonacci, Pisa

Poster Hadron Structure and Meson-Baryon Interaction Working Group Poster Session


Astrid Hiller Blin (IFIC, University of Valencia)


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)


Prof. Thomas Gutsche (University of Tuebingen) Dr Tim Ledwig (University of Valencia) Dr Valeri Lyubovitskij (University of Tuebingen)

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