A blind search for supersymmetry in p(bar)p collisions at sqr(s) = 1.8 TeV using the missing energy plus multijet channel
Abstract
A data sample of 84.37 pb-1 of pp¯ collisions at √s = 1.8 TeV recorded by the Collider Detector at Fermilab is analyzed in search of scalar quarks (squarks, q~) and gluinos (g~). The final state of large missing energy plus >=3 jets, characteristic of hadroproduction and subsequent decays of squarks and gluinos within the minimal supersymmetry and supergravity frameworks with R-parity conservation, is used in the search. The blind analysis method is followed to avoid biases in the data selection. The search is negative at 95% C.L. for gluino masses below 300 GeV/c 2 for the case mq~ ~ mg~ and 195 GeV/c 2 independent of the squark mass. Being that the limit on the gluino mass provides tight fine-tuning constraints on low-energy supersymmetry the result of this search has phenomenological implications on models with unification constraints. It also demonstrates that the missing energy plus multijet channel is a powerful probe for supersymmetry in the upcoming Tevatron Collider run.
- Publication:
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Ph.D. Thesis
- Pub Date:
- 2000
- Bibcode:
- 2000PhDT.......132S
- Keywords:
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- Physics: Elementary Particles and High Energy