TY  - JOUR
AU  - Peláez Sagredo, José Ramón
AU  - Ríos, R.
PY  - 2006
DO  - 10.1103/PhysRevLett.97.242002
SN  - 0031-9007
UR  - https://hdl.handle.net/20.500.14352/51723
T2  - Physical review letters
AB  - By using unitarized two-loop chiral perturbation theory partial waves to describe pion-pion scattering we find that the dominant component of the lightest scalar meson does not follow the q q̅ dependence on the number of colors that, in contrast, is...
LA  - eng
PB  - American Physical Society
KW  - π π-scattering
KW  - Multi-quark hadrons
KW  - Low-energy
KW  - Form-factors
KW  - Phase-shift
KW  - Sigma
KW  - Lagrangians
KW  - Amplitude
KW  - Light
KW  - Resonances
TI  - Nature of the f_0(600) scalar meson from its N_c dependence at two loops in unitarized chiral perturbation theory
TY  - journal article
VL  - 97
ER  -