Search for chargino-neutralino pair production with the D0 detector at the Tevatron
- Stony Brook Univ., NY (United States)
We have searched for evidence for the chargino $$\bar{Χ}$$1± and neutralino ($$\bar{Χ}$$20) pair production in proton anti-proton collisions at a center of mass energy of 1.96 TeV with the D0 detector at the Fermilab Tevatron Collider. Data corresponding to an integrated luminosity of 124.5 pb-1 were examined for events containing like-sign electron pair and missing energy for the first time at D0. They observed no excess above the yield from Standard Model processes. In the framework of mSUGRA, they set a series of upper limits, at the 95% confidence level, of the chargino neutralino production cross section times the branching fraction to tri-electrons as a function of the chargino mass. These limits range from 0.79 pb for m$$\bar{Χ}$$1± = 86.9 GeV/c2 to 0.52 pb for m$$\bar{Χ}$$1± = 115.1 GeV/c2.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 875576
- Report Number(s):
- FERMILAB-THESIS--2004-66
- Country of Publication:
- United States
- Language:
- English
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