SSC Basics

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SSC Basics

• Some points in the SSC allowed region of
  parameter space cause significant amounts of Z
  and higgs bosons to be produced via

Our Standard SSC point

• Can these Z and higgs bosons be utilized well
  enough to be used in SUSY mass measurements?

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PGS Z0 Finding

• Can PGS find Z bosons effectively?

• Using an Opposite-Sign Same-Flavor
  Opposite-Sign Opposite-Flavor technique, PGS
  finds the Z's remarkably well
• Out of 368 events with Z's, 365 are found by PGS
  with this technique.

Nice Z peak!! Small Background!!
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ZJet Effective Mass

• From Monte Carlo event generation analysis, we
  expect the ZJet endpoint to be a nice observable.

• However, it seems that too many jets from
  undesirable decay processes are in the way.
• For example

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ZJet with Jet matching

• If we try to match the PGS Jets to the Generator
  level Jets to do a shape analysis...

• Jets are matched using a Delta R cone.
• gt50 of Jets are NOT matched. Out of 368 good
  events, 154 had matched jets.
• Next goal for this analysis employ a better
  matching method.

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PGS h0 Finding

• Can PGS Find higgs bosons effectively?

• Even using the best justified cuts on the b
  jets... Not really.
• The cuts
• two jets with PT gt 100 GeV
• bb effective mass in the range 70 125 GeV
• bb Delta R lt 0.1.

Not a very nice peak... Did we cut out too many b
jets?
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hJet Effective Mass

• In spite of not having resounding Higgs finding,
  here's the effective mass distribution...