@Article{Nieves_etal2011,
author="Nieves, J.
and Pich, A.
and Ruiz Arriola, E.",
title="Large-N(C) properties of the rho and f(0)(600) mesons from unitary resonance chiral dynamics",
journal="Physical Review D",
year="2011",
publisher="Amer Physical Soc",
volume="84",
number="9",
pages="096002--20pp",
abstract="We construct pi pi amplitudes that fulfill exact elastic unitarity, account for one-loop chiral perturbation theory contributions and include all 1/N(C) leading terms, with the only limitation of considering just the lowest-lying nonet of exchanged resonances. Within such a scheme, the N(C) dependence of sigma and rho masses and widths is discussed. Robust conclusions are drawn in the case of the rho resonance, confirming that it is a stable meson in the limit of a large number of QCD colors, N(C). Less definitive conclusions are reached in the scalar-isoscalar sector. With the present quality of data, we cannot firmly conclude whether or not the N(C) = 3 f(0)(600) resonance completely disappears at large N(C) or if it has a subdominant component in its structure, which would become dominant for a number of quark colors sufficiently large.",
optnote="WOS:000296890300012",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=799), last updated on Thu, 01 Dec 2011 15:47:06 +0000",
issn="1550-7998",
doi="10.1103/PhysRevD.84.096002",
opturl="http://arxiv.org/abs/1107.3247",
opturl="https://doi.org/10.1103/PhysRevD.84.096002",
archivePrefix="arXiv",
eprint="1107.3247",
language="English"
}