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Search for scalar fermions and long-lived scalar leptons at centre-of-mass energies of 130 GeV to 172 GeV

par Abreu, Pedro;Vander Velde, Catherine ;Bertrand, Daniel ; [et al.]
Référence European Physical Journal C. Particles and Fields, 6, page (385-401)
Publication Publié, 1999

Article révisé par les pairs

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Résumé :

Data taken by DELPHI during the 1995 and 1996 LEP runs have been used to search for the supersymmetric partners of electron, muon and tau leptons and of top and bottom quarks. The observations are in agreement with standard model predictions. Limits are set on sfermion masses. Searches for long lived scalar leptons from low scale supersymmetry breaking models exclude stau masses below 55 GeV/c2 at the 95% confidence level irrespective of the gravitino mass.