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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

Abstract

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.

Authors:
;  [1]
  1. Departamento de Fisica Teorica II, Universidad Complutense de Madrid, 28040 Madrid (Spain)
Publication Date:
OSTI Identifier:
20861472
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 97; Journal Issue: 24; Other Information: DOI: 10.1103/PhysRevLett.97.242002; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CHIRALITY; GEV RANGE 01-10; PARTIAL WAVES; PARTICLE IDENTIFICATION; PERTURBATION THEORY; PION-PION INTERACTIONS; SCALAR MESONS

Citation Formats

Pelaez, J. R., and Rios, G.. Nature of the f{sub 0}(600) Scalar Meson from its N{sub c} Dependence at Two Loops in Unitarized Chiral Perturbation Theory. United States: N. p., 2006. Web. doi:10.1103/PHYSREVLETT.97.242002.
Pelaez, J. R., & Rios, G.. Nature of the f{sub 0}(600) Scalar Meson from its N{sub c} Dependence at Two Loops in Unitarized Chiral Perturbation Theory. United States. doi:10.1103/PHYSREVLETT.97.242002.
Pelaez, J. R., and Rios, G.. Fri . "Nature of the f{sub 0}(600) Scalar Meson from its N{sub c} Dependence at Two Loops in Unitarized Chiral Perturbation Theory". United States. doi:10.1103/PHYSREVLETT.97.242002.
@article{osti_20861472,
title = {Nature of the f{sub 0}(600) Scalar Meson from its N{sub c} Dependence at Two Loops in Unitarized Chiral Perturbation Theory},
author = {Pelaez, J. R. and Rios, G.},
abstractNote = {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.},
doi = {10.1103/PHYSREVLETT.97.242002},
journal = {Physical Review Letters},
number = 24,
volume = 97,
place = {United States},
year = {Fri Dec 15 00:00:00 EST 2006},
month = {Fri Dec 15 00:00:00 EST 2006}
}