RT Journal Article
T1 Chiral perturbation theory and the f(2)(1270) resonance
A1 Dobado González, Antonio
A1 Peláez Sagredo, José Ramón
AB Within chiral perturbation theory, we study elastic pion scattering in the I=0,J=2, channel, whose main features are the f(1270) resonance and the vanishing of the lowest order. By means of a chiral model that includes an explicit resonance coupled to pions, we describe the data and calculate the resonance contribution to the O(p(4)) and O(p(6)) chiral parameters. We also generalize the inverse amplitude method to higher orders, which allows us to study channels with vanishing lowest order. In particular, we apply it to the I=0,J=2 case, finding a good description of the f(2)(1270) resonance, as a pole in the second Riemann sheet.
PB American Physical Society
SN 0556-2821
YR 2002
FD 2002-04-01
LK https://hdl.handle.net/20.500.14352/58657
UL https://hdl.handle.net/20.500.14352/58657
LA eng
NO ©2002 The American Physical Society.This work was supported by the Spanish CICYT projectsFPA2000-0956, PB98-0782 and BFM2000-1326
NO Spanish CICYT
DS Docta Complutense
RD 7 abr 2025