1 / 3

Nikhef activities in SUSY searches

Nikhef activities in SUSY searches. No leptons, jets, missing ET Improvement of cuts for compressed SUSY spectra One lepton, jets, missing ET Data-driven background determination: combined fit to control samples Two leptons, jets, missing ET

gwen
Download Presentation

Nikhef activities in SUSY searches

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. Nikhef activities in SUSY searches • No leptons, jets, missing ET • Improvement of cuts for compressed SUSY spectra • One lepton, jets, missing ET • Data-driven background determination: combined fit to control samples • Two leptons, jets, missing ET • Data-driven determination of fake leptons, d0 significance fit • Searches with tau’s • Looking for a top  tau signal first

  2. Searches for SUSY with 1 lepton, jets and missing ET One electron or muon, pT > 20 GeV Three or more jets, pT > 60, 30, 30 GeV Transverse mass between lepton and missing ET > 100 GeV Missing ET > 125 GeV Effective mass (= sum pT all objects) > 500 GeV Background from 3 control samples and data-driven fake lepton estimate Interpretation in mSUGRA: for msquark = mgluino: mgluino > 700 GeV @ 95% CL

  3. For the channel with no leptons: How does the default analysis perform if mLSP approaches mgluino for the decay Efficiency jet selection cuts LSP mass (GeV) How does this affect limits? Can we improve?  Work in progress Gluino mass (GeV) Same-charge dimuon search channel Background from heavy-flavour decays, faking isolated muon. Fit d0 significance distribution to separate prompt- from heavy-flavour component Work in progress

More Related