A Blind Search for Supersymmetry in $$p \bar{p}$$ Collisions at $$\sqrt{s}$$ = 1.8-TeV using the Missing Energy Plus Multijet Channel
- Harvard U.
A data sample of 84.37 $$pb^{-1}$$ of $$p\bar{p}$$ collisions at $$\sqrt{s}$$ = 1.8 TeV recorded by the Collider Detector at Fermilab is analyzed in search of scalar quarks (squarks, $$^\sim_q$$) and gluinos ($$^\sim_g$$). The nal state of large missing energy plus $$\ge$$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 $$m_{^\sim_q} \approx m_{^\sim_g}$$ and 195 GeV/$c^2$ independent of the squark mass. Being that the limit on the gluino mass provides tight ne-tuning constraints on low-energy supersymmetry the result of this search has phenomenological implications on models with unication constraints. It also demonstrates that the missing energy plus multijet channel is a powerful probe for supersymmetry in the upcoming Tevatron Collider run.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1421468
- Report Number(s):
- FERMILAB-THESIS-2000-16; UMI-99-88600; 535352
- Country of Publication:
- United States
- Language:
- English
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