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Publications du LPNHE |  |
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Publications du LPNHE | |
| HAL : in2p3-00282318, version 1 |
| arXiv : 0805.1835 |
| Fiche détaillée |  Récupérer au format |
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| VIth Rencontres de Moriond in Mesoscopic Physics, La Thuile : Italy (2008) |
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| Effects of the (rho, omega, phi) mixing on the dipion mass spectrum in e+ e- annihilation and tau decay |
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| M. Benayoun1 |
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| (2008) |
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| A way to explain the puzzling difference between the pion form factor as measured in e+ e- annihilations and in tau decays is discussed. We show that isospin symmetry breaking, beside the already identified effects, produces also a full mixing between the rho0, omega and phi mesons which generates an isospin 0 component inside the rho0 meson. This effect, not accounted for in current treatments of the problem, seems able to account for the apparent mismatch between e+ e- and tau data below the phi mass. |
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| 1 : | LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies |
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| Thème(s) | : | Physique/Physique des Hautes Energies - Phénoménologie |
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| Lien vers le texte intégral : |
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| http://fr.arXiv.org/abs/0805.1835 |
| in2p3-00282318, version 1 | |
| http://hal.in2p3.fr/in2p3-00282318 | |
| oai:hal.in2p3.fr:in2p3-00282318 | |
| Contributeur : Swarna Bassava | |
| Soumis le : Mardi 27 Mai 2008, 11:13:42 | |
| Dernière modification le : Mardi 27 Mai 2008, 13:44:11 | |
