RT Book, Section
T1 m_π and N_c dependence of rho and σ mesons from unitarized chiral perturbation theory
A1 Rios, G.
A1 Hanhart, Christoph
A1 Peláez Sagredo, José Ramón
AB We review the N_c and m_π dependence of the rho(770) and σ (or f_0(600) resonances generated with the Inverse Amplitude Method. The σ N_c behavior is at odds with being dominantly a q̅q̅ state, but there is a hint of a subdominant q̅q̅o component with a mass above 1 GeV. We find fair agreement with lattice results for the chiral extrapolation of the ρ mass, and that the ρ π π coupling is almost m_π independent whereas the σ π π depends strongly on m_π.
PB American Institute of Physics
SN 978-0-7354-0899-9
YR 2011
FD 2011
LK https://hdl.handle.net/20.500.14352/45620
UL https://hdl.handle.net/20.500.14352/45620
LA eng
NO ISSN: 0094-243X©2011 American Institute of Physics 978-0-7354-0899-9.International Conference on Quark Confinement and the Hadron Spectrum (9. 2010. Madrid).
DS Docta Complutense
RD 15 dic 2025