Search for scalar quarks in e(+)e(-) collisions at root s up to 209 GeV
(2002) Physics Letters B — Vol. 537, n° 1-2, p. 5-20 (2002)
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- Abstract
- Searches for scalar top, scalar bottom and mass-degenerate scalar quarks are performed in the data collected by the ALEPH detector at LEP. at centre-of-mass energies up to 209 GeV, corresponding to an integrated luminosity of 675 pb(-1). No evidence for the production of such particles is found in the decay channels (t) over tilde -->C/uchi, (t) over tilde -->bl (ν) over tilde, (q) over tilde -->bchi, ($) over tilde -->qchi or in the stop four-body decay channel (t) over tilde -->bchif (f) over bar' studied for the first time at LEP. The results of these searches yield improved mass lower limits. In particular, an absolute lower limit of 63 GeV/c(2) is obtained for the stop mass, at 95% confidence level, irrespective of the stop lifetime and decay branching ratios. (C) 2002 Elsevier Science B.V All rights reserved.
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Delaere, C., Lemaitre, V., & et al. (2002). Search for scalar quarks in e(+)e(-) collisions at root s up to 209 GeV. Physics Letters B, 537(1-2), 5-20. https://hdl.handle.net/2078.5/49432 (Original work published 2002)