Artículo
Oller, J.A.; Roca, L.; Schat, C.; Luso-American Foundation for Development (FLAD); Calouste Gulbenkian Foundation (FCG); Foundation for Science and Technology (FCT); Center of Physics of the Fundamental Interactions (CFIF); Center of Theoretical Particle Physics (CFTP) "Sa-wave γγ→ππ and f0 (980)→ππ" (2008) Workshop on Scalar Mesons and Related Topics: Honoring Michael D. Scadron's 70th Birthday, SCADRON 2008. 1030:147-152
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Abstract:
We report on a dispersion relation for the γγ→(ππ)I Sa-wave in isospin I emphasizing the low energy region. The f0(980) signal that emerges in γγ→ππ is also discussed. Our results could be used to distinguish between different ππ isoscalar Sa-wave parameterizations. We also calculate the width of the σ resonance to γγ and obtain the value Γ(σ→γγ) = (1.68±0.15)KeV. Finally, we elaborate on the size of the f0(980) coupling to ππ and show that its smallness compared to the KKÌ" one is not related to the OZI rule. © 2008 American Institute of Physics.
Registro:
| Documento: | Artículo |
| Título: | Sa-wave γγ→ππ and f0 (980)→ππ |
| Autor: | Oller, J.A.; Roca, L.; Schat, C.; Luso-American Foundation for Development (FLAD); Calouste Gulbenkian Foundation (FCG); Foundation for Science and Technology (FCT); Center of Physics of the Fundamental Interactions (CFIF); Center of Theoretical Particle Physics (CFTP) |
| Ciudad: | Lisbon |
| Filiación: | Departamento de Fisica, Universidad de Murcia, Spain CONICET and Departamento de Fisica, FCEyN, Universidad de Buenos Aires, Ciudad Universitaria, Pab. 1, (1428) Buenos Aires, Argentina |
| Palabras clave: | meson-meson scattering; scalar resonances; two photons |
| Año: | 2008 |
| Volumen: | 1030 |
| Página de inicio: | 147 |
| Página de fin: | 152 |
| DOI: | http://dx.doi.org/10.1063/1.2973490 |
| Título revista: | Workshop on Scalar Mesons and Related Topics: Honoring Michael D. Scadron's 70th Birthday, SCADRON 2008 |
| Título revista abreviado: | AIP Conf. Proc. |
| ISSN: | 0094243X |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0094243X_v1030_n_p147_Oller |
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Citas:
---------- APA ----------
Oller, J.A., Roca, L., Schat, C. & Luso-American Foundation for Development (FLAD); Calouste Gulbenkian Foundation (FCG); Foundation for Science and Technology (FCT); Center of Physics of the Fundamental Interactions (CFIF); Center of Theoretical Particle Physics (CFTP) (2008) . Sa-wave γγ→ππ and f0 (980)→ππ. Workshop on Scalar Mesons and Related Topics: Honoring Michael D. Scadron's 70th Birthday, SCADRON 2008, 1030, 147-152.http://dx.doi.org/10.1063/1.2973490
---------- CHICAGO ----------
Oller, J.A., Roca, L., Schat, C., Luso-American Foundation for Development (FLAD); Calouste Gulbenkian Foundation (FCG); Foundation for Science and Technology (FCT); Center of Physics of the Fundamental Interactions (CFIF); Center of Theoretical Particle Physics (CFTP) "Sa-wave γγ→ππ and f0 (980)→ππ" . Workshop on Scalar Mesons and Related Topics: Honoring Michael D. Scadron's 70th Birthday, SCADRON 2008 1030 (2008) : 147-152.http://dx.doi.org/10.1063/1.2973490
---------- MLA ----------
Oller, J.A., Roca, L., Schat, C., Luso-American Foundation for Development (FLAD); Calouste Gulbenkian Foundation (FCG); Foundation for Science and Technology (FCT); Center of Physics of the Fundamental Interactions (CFIF); Center of Theoretical Particle Physics (CFTP) "Sa-wave γγ→ππ and f0 (980)→ππ" . Workshop on Scalar Mesons and Related Topics: Honoring Michael D. Scadron's 70th Birthday, SCADRON 2008, vol. 1030, 2008, pp. 147-152.http://dx.doi.org/10.1063/1.2973490
---------- VANCOUVER ----------
Oller, J.A., Roca, L., Schat, C., Luso-American Foundation for Development (FLAD); Calouste Gulbenkian Foundation (FCG); Foundation for Science and Technology (FCT); Center of Physics of the Fundamental Interactions (CFIF); Center of Theoretical Particle Physics (CFTP) Sa-wave γγ→ππ and f0 (980)→ππ. AIP Conf. Proc. 2008;1030:147-152.http://dx.doi.org/10.1063/1.2973490
