Abstract
The results of searches for selectrons, charginos and neutralinos performed with the data collected by the ALEPH detector at LEP at centre-of-mass energies up to 209 GeV are interpreted in the framework of the Minimal Supersymmetric extension of the Standard Model with R-parity conservation. Under the assumptions of gaugino and sfermion mass unification and no sfermion mixing, an absolute lower limit of 73 GeV/c 2 is set on the mass of the lighter selectron ẽ R at the 95% confidence level. Similarly, limits on the masses of the heavier selectron ẽ L and of the sneutrino ṽ e are set at 107 and 84 GeV/c 2, respectively. Additional constraints are derived from the results of the searches for Higgs bosons. The results are also interpreted in the framework of minimal supergravity.
Original language | English |
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Pages (from-to) | 73-88 |
Number of pages | 16 |
Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 544 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 19 Sept 2002 |
Externally published | Yes |