Phenomenology of the Higgs at the hadron colliders: from the Standard Model to Supersymmetry

Abstract

The Higgs boson, relic of the spontaneous electroweak symmetry breaking, is one of the most important searches at current hadron colliders. This thesis wishes to present theoretical predictions for the inclusive production and decay of the Higgs boson(s) either in the context of the Standard Model (SM) or in its minimal supersymmetric extension (MSSM) where five Higgs bosons are present. We will focus on the two major hadron colliders, the Fermilab Tevatron collider and the CERN Large Hadron Collider (LHC) which is running at 7 TeV. We will present the predictions for the dominant production and decay channels and describe the thorough analysis of the theoretical uncertainties affecting these predictions that has been conducted. We will give the implications on experimental searches and in particular revisit the inferred limits on SM Higgs boson mass and on the MSSM parameter space. We will also give an important consequence on the SM Higgs search in the $H\to \tau \tau$ channel. Some perspectives for futur works will be given in the end.

PhD thesis, Univ. Paris-Sud 11, defended on October 10th, 2011. 335 pages, 23 tables, 86 figures, 381 references; main text in English, 23 pages of summary in French in the Appendix

References in corpus (28)

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• Implications of CTEQ global analysis for collider observables
• An NNLO subtraction formalism in hadron collisions and its application to Higgs boson production at the LHC
• -- HATHOR -- HAdronic Top and Heavy quarks crOss section calculatoR
• MCFM for the Tevatron and the LHC
• NLO Electroweak Corrections to Higgs Boson Production at Hadron Colliders
• Search for squarks and gluinos using final states with jets and missing transverse momentum with the ATLAS detector in sqrt(s) = 7 TeV proton-proton collisions
• Electroweak and QCD corrections to Higgs production via vector-boson fusion at the LHC
• Theoretical status and prospects for top-quark pair production at hadron colliders
• Updated predictions for the total production cross sections of top and of heavier quark pairs at the Tevatron and at the LHC
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• The theoretical top quark cross section at the Tevatron and the LHC
• Higher-Order threshold effects to inclusive processes in QCD
• Heavy-quark mass dependence in global PDF analyses and 3- and 4-flavour parton distributions
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• Higgs Boson Production via Gluon Fusion: Squark Loops at NLO QCD
• The constrained next-to-minimal supersymmetric standard model
• NNLO Benchmarks for Gauge and Higgs Boson Production at TeV Hadron Colliders
• Search for Higgs bosons decaying to tau pairs in ppbar collisions with the D0 detector
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• The Tevatron Higgs exclusion limits and theoretical uncertainties: a critical appraisal
• Higgs production at NNLO in QCD: the VBF channel
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• Revisiting the constraints on the Supersymmetric Higgs sector at the Tevatron
• HNNLO: a Monte Carlo program to compute Higgs boson production at hadron colliders
• The effects of combined HERA and recent Tevatron W - > lepton neutrino charge asymmetry data on the MSTW PDFs