1 / 11

Higgs Recoil Mass Measurement and ZH Cross Section

This study, conducted by Tim Barklow and Awatif Belymam at SLAC in 2009, focuses on simulating the Higgs recoil mass and ZH cross section at a center-of-mass energy of 250 GeV. The Higgs mass is investigated at 120 GeV and 119.7 GeV, with signal events totaling 300,000 and background events reaching 7 million. The analysis includes event selection, estimation of measurement accuracies for Higgs mass and σ(ZH), as well as comparison of errors in the muon and electron channels, aiming to understand potential deviations of 40-50 MeV in the recoil mass. Additional work will utilize four distinct, untouched 250 fb-1 Higgs samples to further investigate this issue.

fallis
Download Presentation

Higgs Recoil Mass Measurement and ZH Cross Section

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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.

More Related