1 / 9

Search for Chargino and Neutralino in the low p T e μ channel -- STATUS --

Search for Chargino and Neutralino in the low p T e μ channel -- STATUS --. Melisa Rossi Udine University. Since last time. Double checked ID Scale Factors CEM Only tight electron definition For low p T : CDFNote 8321 - 7379 (Sourabh) For high p T : CDFNote 8274 -7309 CMUP

werner
Télécharger la présentation

Search for Chargino and Neutralino in the low p T e μ channel -- STATUS --

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. Search for Chargino and Neutralino in the low pT eμ channel-- STATUS -- Melisa Rossi Udine University SUSY Meeting

  2. Since last time • Double checked ID Scale Factors • CEM • Only tight electron definition • For low pT :CDFNote 8321- 7379 (Sourabh) • For high pT :CDFNote 8274 -7309 • CMUP • For low pT : CDFNote 8307 (New Mexico) • For high pT : CDFNote 8262 - 7367 CEM ID Scale Factors CMUP ID Scale Factors • SF ET • 0.8 4-5GeV • 0.88 5-8GeV • 0.95 8-20GeV • 0.986 >20GeV • SF PT • 0 .868 4-20GeV • 0.89 >20GeV SUSY Meeting

  3. Since last time • Double checked b mixing in our bbbar • Do not have b mixing • To include the mixing • Check HEPG bank • For each B0 and B0s leptonic decay • Swap lepton sign according to the probability of mixing • B mixing improves LS data/MC agreement SUSY Meeting

  4. The MET Distribution 220pb-1 310pb-1 with new SF and b mixing SUSY Meeting

  5. Low MET Control RegionMET<10 GeV nJET<2 Opposite Sign Like Sign SUSY Meeting

  6. ΔΦ(lepton,MET) Distribution Opposite Sign Like Sign SUSY Meeting

  7. Next • Still big statistical uncertainty on bbbar  need to add all new ntuples by Giovanni (~800pb-1) • Look at new data (edil0h) SUSY Meeting

  8. Control Regions – Summary SUSY Meeting

  9. Data and MC • Data • SUSY dilepton dataset edil0d • Good run list v7 no silicon (~310pb-1), CEM4_CMUP4 trigger • MC • Signal point (m0=100,m1/2=180,A0=0,tanβ=5,μ>0)~360fb-1 • DY sexo9t (Z ll, Mll>5GeV/c2)~5fb-1 • ttbar (ttopel)~170fb-1 • WW (wtop1w)~34fb-1 • ZZ (Oscar)~535fb-1 • WZ (Madgraph)~430fb-1 • bbbar (Giovanni)~150pb-1 • Fakes • using CEM8 and CMUP8 inclusive samples • Lepton+fake selection requiring events with • real first lepton (CEM8 for eμ and CMUP8 for μe) • fake lepton using Liverpool method SUSY Meeting

More Related