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

Contents

Documentation

(N)NLO Cross Section Table

Bayesian Framework

Posterior Probability

Expected limits from Pseudo Experiments

November 2009 Combined Results with 4.8 fb

Summary Plots sorted by s/b

Projections

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Abstract

Documentation

- November 2009 Public Note
- August 2009 CDF Higgs Combination
- March 2009 CDF Higgs Combination
- January 2009 CDF Higgs Combination
- Summer 2008 CDF Higgs Combination
- Winter 2008 CDF Higgs Combination

- WH→lνbb (2-jet, Neural Networks)
- WH→lνbb (3-jet, Matrix Elements)
- VH→MET+bb
- ZH→ll bb
- VH, VBF, ggH →2jet+H→τ&tau
- VH→2jet+H→bb
- gg→H→WW→lνl&nu

L=4.3 fb^{-1} |
Web Page | Public Note | |

L=4.3 fb^{-1} |
Web Page | Public Note | |

L=3.6 fb^{-1} |
Web Page | Public Note | |

L=4.1 fb^{-1} |
Web Page | Public Note | |

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

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

L=4.8 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 production cross section is calculated at NNLL in QCD and also includes two-loop electroweak effects. For details, see C. Anastasiou, R. Boughezal and F. Petriello, "Mixed QCD-electroweak corrections to Higgs boson production in gluon fusion", arXiv:0811.3458 [hep-ph] (2008). and D. de Florian and M. Grazzini, "Higgs production through gluon fusion: updated cross sections at the Tevatron and the LHC", arXiv:0901.2427v1 [hep-ph] (2009).
- We have included the scale uncertainties uncertainties in the gg → H production cross section in each jet bin separately (0, 1, and 2+ jets), and have also take the increased PDF uncerrtainty in the gg → H production cross section, both from Anastasiou, Dissertori, Grazzini, Stöckli, and Webber: arXiv:0905.3529v3 [hep-ph]

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 4.8 fb^{-1} (November 2009)

Posterior Probability

Expected Limits with Pseudo-experiments

Events Ranked by s/b

Projections

2xCDF Projections

Experimental Contacts

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Doug Benjamin dbenjamin AT fnal.gov 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

November 17, 2009 CDF Higgs Working Group