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Title: Nature of the f{sub 0}(600) Scalar Meson from its N{sub c} Dependence at Two Loops in Unitarized Chiral Perturbation Theory

Journal Article · · Physical Review Letters
;  [1]
  1. Departamento de Fisica Teorica II, Universidad Complutense de Madrid, 28040 Madrid (Spain)

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 qq dependence on the number of colors that, in contrast, is obeyed by the lightest vectors. The method suggests that a subdominant qq component of the f{sub 0}(600) possibly originates around 1 GeV.

OSTI ID:
20861472
Journal Information:
Physical Review Letters, Vol. 97, Issue 24; Other Information: DOI: 10.1103/PhysRevLett.97.242002; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
Country of Publication:
United States
Language:
English