A search for Wino-Zino associated production via trileptonic final states with the D-zero detector
Abstract
A search for trileptonic final states from the Wino-Zino associated production has been performed with the DO Detector at the Fermi National Accelerator Laboratory (Fermilab) Tevatron at a center-of-mass energy of 1.8 TeV. Leptons included in the analysis are limited to electrons and muons, defining four different channels: eee,/ ee/mu,/ e/mu/mu, and μmu/mu. Based on approximately 95 pb-1 of data in each channel, no candidate event is found. Assuming R-parity conservation and mass relationships: M/tilde W1/ ≃/ M/tilde Z2/ ≃/ 2M/tilde Z1, this null result is translated into an upper limit of Wino-Zino production times the branching fraction to any of the trileptonic final states as a function of M/tilde W1. This limit ranges from 0.7 pb for M/tilde W1 = 45 GeV/c2 to 0.1 pb for M /tilde W1 = 124 GeV/c2. A study to extend the application of this limit using more general assumptions will be discussed.
- Publication:
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Ph.D. Thesis
- Pub Date:
- 1997
- Bibcode:
- 1997PhDT.......145W
- Keywords:
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- Physics: Elementary Particles and High Energy