432 citations · 472 across the 7 of their papers we have counts for
Showing hep-phShow all
3 papers · 1 filter
hep-ph1999
Pion Scattering Revisited
M. Ruiz-Altaba, J. L. Lucio, M. Napsuciale
Chiral Ward identities lead to consistent accounting for the sigma's width in the linear sigma model's Feynman rules. Reanalysis of pion scattering data at threshold imply a mass f…
hep-ph1999★ 4 cited
The Linear Sigma Model at Work: Succesful Postdictions for Pion Scattering
J. L. Lucio, M. Napsuciale, M. Ruiz-Altaba
We enforce chiral Ward identities on the vertices of the linear sigma model to take into account the width of the scalar sigma, considered as a true physical resonance. We consider…
hep-ph1996
The q-deformed quark model: quantum isospin and q-hadrons
M. Klein-Kreisler, M. Ruiz-Altaba
We consider the possibility that the SU(2) isospin symmetry, exact in strong interactions but only approximate in nature, is in fact a quantum group. Using a doublet of q-quarks, w…