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Internal Note and Article
Report number	hep-ph/0608176 ; CMS-NOTE-2006-103 ; CMS-NOTE-2006-103
Title	Using the $e^{\pm}\mu^{\mp} + E_{T}^{miss}$ Signature in the Search for Supersymmetry and Lepton Flavour Violation in Neutralino Decays
Related title	LEPTON FLAVOR
Author(s)	Andreev, Yu.M. (Moscow, INR) ; Bityukov, S.I. (Serpukhov, IHEP) ; Krasnikov, N.V. (Moscow, INR) ; Toropin, A.N. (Moscow, INR)
Publication	2007
Imprint	7 Jun 2006
Number of pages	20
Note	1 latex (20 pages), 9 eps (figures) files Report-no: CMS NOTE 2006/103
In:	Phys. At. Nucl. 70 (2007) 1717-1724
DOI	10.1134/S1063778807100067
Subject category	Particle Physics - Phenomenology ; Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; CMS
Free keywords	PRS
Abstract	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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