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Higgs Recoil Mass Measurement and ZH Cross Section

Higgs Recoil Mass Measurement and ZH Cross Section. Tim Barklow, Awatif Belymam SLAC Mar 2, 2009. Simulation. CM Energy: 250 GeV Higgs mass: 120 GeV and 119.7 GeV Signal 250 fb -1 : +80e-__-30e+ 125 fb -1 : +80e-__-30e+ and -80e-__+30e+ 300,000 events Background 7M events.

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Higgs Recoil Mass Measurement and ZH Cross Section

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  1. Higgs Recoil Mass Measurement and ZH Cross Section Tim Barklow, Awatif Belymam SLAC Mar 2, 2009

  2. Simulation • CM Energy: 250 GeV • Higgs mass: 120 GeV and 119.7 GeV • Signal • 250 fb-1: +80e-__-30e+ • 125 fb-1: +80e-__-30e+ and -80e-__+30e+ • 300,000 events • Background • 7M events

  3. Analysis • Higgs Recoil Mass: • Cross Section: • Estimation of measurement accuracies of the Higgs mass and σ(ZH)

  4. Event Selection

  5. Signal after Event Selection

  6. Recoil mass • Muon channel, 250 fb-1

  7. Recoil Mass Error vs Bin Size

  8. ZH Cross-Section

  9. Further Work • Understand Recoil Mass Error ; currently muon and electron channel errors are too similar. Is asymptotic 40-50 MeV real? We will use four untouched independent 250 fb-1 Higgs samples to address this problem.

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