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Peláez Sagredo, José Ramón and Ríos, R. (2006) Nature of the f_0(600) scalar meson from its N_c dependence at two loops in unitarized chiral perturbation theory. Physical review letters, 97 (24). ISSN 0031-9007
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.97.242002
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 q q̅ dependence on the number of colors that, in contrast, is obeyed by the lightest vectors. The method suggests that a subdominant q q̅ component of the f_0(600) possibly originates around 1 GeV.
| Item Type: | Article |
|---|---|
| Additional Information: | ©2006 The American Physical Society. |
| Uncontrolled Keywords: | π π-scattering; Multi-quark hadrons; Low-energy; Form-factors; Phase-shift; Sigma; Lagrangians; Amplitude; Light; Resonances |
| Subjects: | Sciences > Physics > Physics-Mathematical models Sciences > Physics > Mathematical physics |
| ID Code: | 35357 |
| Deposited On: | 28 Jan 2016 19:01 |
| Last Modified: | 10 Dec 2018 15:09 |
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