| HAL : in2p3-00719927, version 1 |
| arXiv : 1207.4894 |
| DOI : 10.1007/JHEP09(2012)092 |
| Fiche détaillée | Récupérer au format |
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| Journal of High Energy Physics 9 (2012) 92 |
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| LHC sensitivity to lepton flavour violating Z boson decays |
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| S. Davidson1S. Lacroix1P. Verdier1 |
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| (2012) |
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| We estimate that the LHC could set bounds $BR(Z\to \mu^\pm e^\mp) < 4.1\times 10^{-7}$ and $BR(Z \to \tau^\pm \mu^\mp)< 3.5\times 10^{-6}$ (at 95% C.L.) with 20 fb$^{-1}$ of data at 8 TeV. A similar sensitivity can be anticipated for $Z\to \tau^\pm e^\mp$, because we consider leptonic $\tau$ decays such that $Z\to \tau^+ \mu^- \to e^+ \mu^- +$ invisible. These limits can be compared to the LEP1 bounds of order $10^{-5} \to 10^{-6}$. Such collider searches are sensitive to a flavour-changing effective $Z$ coupling which is energy dependent, so are complementary to bounds obtained from $\tau \to 3 \mu$ and $\mu \to 3e$. |
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| 1 : | IPNL - Institut de Physique Nucléaire de Lyon |
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| Theorie D0 |
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| Thème(s) | : | Physique/Physique des Hautes Energies - Expérience Physique/Physique des Hautes Energies - Phénoménologie |
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| Lien vers le texte intégral : |
| in2p3-00719927, version 1 | |
| http://hal.in2p3.fr/in2p3-00719927 | |
| oai:hal.in2p3.fr:in2p3-00719927 | |
| Contributeur : Sylvie Florès | |
| Soumis le : Lundi 23 Juillet 2012, 07:02:59 | |
| Dernière modification le : Mardi 9 Octobre 2012, 15:47:43 | |