Search for Chargino-Neutralino Pair Production

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Search for Chargino-Neutralino Pair
Production With the D0 Detector at the
Tevatron Zhongmin Wang March 3rd, 2004

• Supersymmetry (SUSY) extends the Standard Model
  in particle physics
• SUSY particles chargino and neutralino could be
  pair produced at the Fermilab Tevatron Collider
  if they exist
• We have searched for the production of chargino
  and neutralino in the like-sign di-electron
  channel with the D0 RunII data

• In our search, we observed no excess above the
  yield from the SM prediction
• From this null result, we set a series of upper
  limits for the chargino-neutralino production
  cross section as a function of charginos mass
  (as shown in the figure)