Search for Scalar Leptons in $e^+ e^-$ collisions at $\sqrt{s}$= 189 GeV

3 CMS
IP2I Lyon - Institut de Physique des 2 Infinis de Lyon
Abstract : We report the result of a search for scalar leptons in $\rm e^+e^-$, collisions at 189 GeV centre-of-mass energy at LEP. No evidence for such particles is found in a data sample of 176 pb$^{-1}$. Improved upper limits are set on the production cross sections for these new particles. New exclusion contours in the parameter space of the Minimal Supersymmetric Standard Model are derived, as well as new lower limits on the masses of these supersymmetric particles. Under the assumptions of common gaugino and scalar masses at the GUT scale, we set an absolute lower limit on the mass of the lightest scalar electron of 65.5 GeV.
Document type :
Journal articles

Cited literature [22 references]

http://hal.in2p3.fr/in2p3-00003720
Contributor : Sylvie Flores <>
Submitted on : Tuesday, January 18, 2000 - 1:51:00 PM
Last modification on : Friday, December 4, 2020 - 1:22:16 PM
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Citation

M. Acciarri, P. Achard, O. Adriani, M. Aguilar-Benitez, J. Alcaraz, et al.. Search for Scalar Leptons in $e^+ e^-$ collisions at $\sqrt{s}$= 189 GeV. Physics Letters B, Elsevier, 1999, 471, pp.280-292. ⟨10.1016/S0370-2693(99)01314-3⟩. ⟨in2p3-00003720⟩

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