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David Toback Texas A&M University For the CDF collaboration

David Toback Texas A&M University For the CDF collaboration. Searches using Photons and/or Jets at CDF. David Toback Texas A&M University For the CDF collaboration. Outline.

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David Toback Texas A&M University For the CDF collaboration

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  1. David Toback Texas A&M University For the CDF collaboration Searches using Photons and/or Jets at CDF David Toback Texas A&M University For the CDF collaboration Searches using Photons and/or Jets at CDF David Toback, Texas A&M University

  2. Outline The CDF detector and tools are working so well that the next generation of more sophisticated analyses are coming out with 2 fb-1 of data • Dijets: Mass and Met • g+b+jet+Met • Lepton+g+b+Met: Model-independent searches and a first measurement of the ttg Cross Section • g+jets and gg+Met: Model-independent searches and new limits on Gauge Mediated Supersymmetry Hot off the presses! Searches using Photons and/or Jets at CDF David Toback, Texas A&M University

  3. RS Graviton Excited quark Z’ W’ New Physics in Dijets Sensitive To Lots of Models Look for Mass Bumps New Particle Mass (GeV) Searches using Photons and/or Jets at CDF David Toback, Texas A&M University Dijet Mass (GeV) New Particle Mass (GeV)

  4. Squark Squark Lepto- Quark Lepto- Quark New Physics in Dijets+Met Also Sensitive To Lots of Models n n Searches using Photons and/or Jets at CDF David Toback, Texas A&M University

  5. g+b+jet+Met Model-independent search in the g+b+jet+Met final state Sensitive to a number of different models Potential to observe an excess in multiple distributions No evidence for new physics Searches using Photons and/or Jets at CDF David Toback, Texas A&M University

  6. g+b+jet+Met Compare with 20 times the data and a better detector In Run I with 85 pb-1 a small excess was observed Potential anomaly not confirmed Searches using Photons and/or Jets at CDF David Toback, Texas A&M University

  7. Search in l+g+b+Met Another example of a CDF Model-independent search for new physics Natural extension of the g+lepton+Met search Potential to observe an excess in multiple distributions Searches using Photons and/or Jets at CDF David Toback, Texas A&M University

  8. Natural extension of the lgbMet analysis Require 3 jets and HT>200 GeV Searches using Photons and/or Jets at CDF David Toback, Texas A&M University

  9. Later Universe Early Universe Warm Dark Matter Gauge-Mediated SUSY Breaking Models More natural solution for FCNC problems than mSUGRA CDF Run I eegg+Met candidate event Nanosecond lifetimes Searches using Photons and/or Jets at CDF David Toback, Texas A&M University

  10. g+Jets New model independent search in the g+2 jet final state No evidence for new physics Limits on GMSB in progress Searches using Photons and/or Jets at CDF David Toback, Texas A&M University

  11. gg+Met New model independent search in the gg+Met New tool: Sophisticated mechanism to measure the significance of the Met measurement Can straightforwardly separate QCD backgrounds with no intrinsic Met from EWK that does Searches using Photons and/or Jets at CDF David Toback, Texas A&M University No evidence for new physics

  12. Gauge Mediated Supersymmetry Optimize the gg+Met analysis for 0 ns lifetime: Significant Met and Large HT Complement to the Delayed Photon Analysis No evidence for new physics Approaching the Cosmology Favored Region Set limits for zero and Non-zero lifetimes Searches using Photons and/or Jets at CDF David Toback, Texas A&M University

  13. Conclusions The LHC era has started but the Tevatron is still collecting data and leading the search for Supersymmetry and Beyond the Standard Model Physics The next generation of sophisticated tools and model-independent searches at CDF may well prove to make the discovery we all hope is just around the corner “Don't look back — something might be gaining on you." -Satchel Paige Searches using Photons and/or Jets at CDF David Toback, Texas A&M University

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