## Combined Upper Limit on Standard Model Higgs Boson Production at CDF for Winter 2009## The CDF Higgs Working Group |

Contents

Documentation

(N)NLO Cross Section Table

Bayesian Framework

Posterior Probability

Expected limits from Pseudo Experiments

Combined Results with 3.0 fb

Summary Plots sorted by s/b

Projections

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Abstract

Documentation

- WH->lνbb
- VH->MET+bb
- ZH->ll bb
- VH, VBF, ggH ->2jet+H->τ&tau
- gg->H->WW->lνl&nu
- WH->WWW like-sign dileptons

L=2.7 fb^{-1} |
Web Page | Notes: ME+BDT, NN, Combination | |

L=2.1 fb^{-1} |
Web Page | Public Note | |

L=2.7 fb^{-1} |
Web Page | Public Note | |

L=2.0 fb^{-1} |
Web Page | Public Note | |

L=3.0 fb^{-1} |
Web Page | Public Note | |

L=2.7 fb^{-1} |
Web Page | Public Note |

Cross Sections

- The cross sections at points not specified in the TeV4LHC Tables are obtained by interpolating log(cross section) vs. mH between neighboring points in the table. These cross sections have been verified with MCFM.
- The gg -> H cross section has been adjusted to include the effects of two-loop Electroweak diagrams. For details, see U. Aglietti, R. Bonciani, G. Degrassi, and A. Vicini, "Two-loop electroweak corrections to Higgs production in proton-proton collisions", arXiv:hep-ph/0610033v1 (2006).

Bayesian Framework

The integrals over the uncertain parameters with their correlated priors from external constraints are done with a Markov Chain Monte Carlo integration method, using the Metropolis-Hastings algorithm.

Combination Results with 3.0 fb^{-1} (Winter 2009)

Posterior Probability

Expected Limits with Pseudo-experiments

Events Ranked by s/b

Projections

2xCDF Projections

Experimental Contacts

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Matt Herndon herndon AT hep.wisc.edu Eric James jameseb AT fnal.gov Tom Junk trj AT fnal.gov Ben Kilminster bjk AT fnal.gov Nils Krumnack nils AT fnal.gov Weiming Yao wmyao AT lbl.gov

January 28, CDF Higgs Working Group