Using the e^{+/-} mu^{-/+} + E^{miss}_T signature in the search for supersymmetry and lepton flavour violation in neutralino decays

Details Using the e^{+/-} mu^{-/+} + E^{miss}_T signature in the search for supersymmetry and lepton flavour violation in neutralino decays Using the e^{+/-} mu^{-/+} + E^{miss}_T signature in the search for supersymmetry and lepton flavour violation in neutralino decays

2006-08-15

arxiv.org/abs/hep-ph/0608176v1

Phys.Atom.Nucl.70:1717-1724,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

1 latex (20 pages), 9 eps (figures) files

Scientific paper

10.1134/S1063778807100067

The LHC (CMS) discovery potential of the $e^{\pm}\mu^{\mp} + E^{miss}_T$ signature in the search for supersymmetry and lepton flavour violation in neutralino decays is studied. A detailed study is done for the CMS test points LM1-LM9. It is shown that for the point LM1 it is possible to detect lepton flavour violation in neutralino decays with lepton flavour violating branching $Br(\tilde{\chi}^0_2 \to \mu^{\pm}e^{\mp}\tilde{\chi}^0_1) \geq 0.04 Br(\tilde{\chi}^0_2 \to e^{+}e^{-}\tilde{\chi}^0_1, \mu^{+}\mu^{-} \tilde{\chi}^0_1)$ for an integral luminosity $10 fb^{-1}$. A discovery potential in the mSUGRA-SUSY scenario with $\tan \beta = 10, ~sign(\mu) = +$ in the $(m_0, m_{1/2})$ plane using the $e^{\pm}\mu^{\mp} + E^{miss}_T$ signature is determined.

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