Andy Haas Moriond QCD 2007 Slide 1 Searches for non-SM Higgs at the Tevatron Andy Haas DØ / ATLAS Columbia University on behalf of the DØ and CDF Collaborations.

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Presentation transcript:

Andy Haas Moriond QCD 2007 Slide 1 Searches for non-SM Higgs at the Tevatron Andy Haas DØ / ATLAS Columbia University on behalf of the DØ and CDF Collaborations Moriond QCD 2007

Andy Haas Moriond QCD 2007 Slide 2 Outline ● Introduction – The Tevatron – DØ and CDF detectors ● MSSM Higgs – (H/A)->tautau – b(H/A)->bbb ● Fermiophobic Higgs ● Prospects

Andy Haas Moriond QCD 2007 Slide 3

Andy Haas Moriond QCD 2007 Slide 4

Andy Haas Moriond QCD 2007 Slide 5

Andy Haas Moriond QCD 2007 Slide 6

Andy Haas Moriond QCD 2007 Slide 7

Andy Haas Moriond QCD 2007 Slide 8 b(H/A)->bbb ● BR(H/A->bb)~90% at high tanB ● H/A->bb swamped by QCD bckg. ● Look for associated b and H/A->bb ● >=3 b-tagged jets with pT>40,25,15 GeV ● Signal: – Invariant mass of leading jets is peaked at m A ● Backgrounds (determined in data): – Shape is from the double b-tagged data sample (taking into account kinematic bias from the 3 rd b-tag) – Size is normalized outside the “signal region” (for each candidate m A and tanB) Events with >=3 b-tagged jets “Signal window” 0.9 fb -1 Inv. mass of leading jets (GeV) (mA=120, tanB=60)

Andy Haas Moriond QCD 2007 Slide 9 b(H/A)->bbb Limits ● Data agrees with the predicted background ● Set upper tanB limits on various Higgs masses using the CLs method ● Limits comparable to H/A->tautau, especially at low m A (mA=120, tanB=60) 0.9 fb -1 Inv. mass of leading jets (GeV)

Andy Haas Moriond QCD 2007 Slide 10

Andy Haas Moriond QCD 2007 Slide 11 Prospects ● Results from the first 1/fb of data show very promising sensitivity ● Expect up to 8 fb -1 by 2009 ● By the end of Run II, exclude – up to mA~250 GeV for high tanB – down to tanB~20 for low mA ● Or make a discovery! ● CDF and DØ will combine H/A->tautau, b(H/A)->bbb, and b(H/A)->btautau (not discussed), channels (for this summer?) ● Working group is in place for the combination of DØ and CDF results

Andy Haas Moriond QCD 2007 Slide 12 Back-up Slides

Andy Haas Moriond QCD 2007 Slide 13 Upcoming Analyses: h->4tau Simulatedh->4tauevent

Andy Haas Moriond QCD 2007 Slide 14