## Contact

Swiss National Science Foundation (SNSF)

Wildhainweg 3P.O. Box

CH-3001 Bern

Phone +41 31 308 22 22

Applicant | Anastasiou Charalampos |
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Number | 126632 |

Funding scheme | Project funding (Div. I-III) |

Research institution | Institut für Theoretische Physik ETH Zürich |

Institution of higher education | ETH Zurich - ETHZ |

Main discipline | Theoretical Physics |

Start/End | 01.10.2009 - 30.09.2012 |

Approved amount | 423'225.00 |

Discipline |
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Theoretical Physics |

Particle Physics |

Theory of Elementary Particles; Quantum Chromodynamics; Perturbative Calculations; Higgs boson physics; Supersymetric Yang-Mills theories; Models in extra dimensions; Particle phenomenology; pertubative methods; Higgs physics

Lead |
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Lay summary |

We study the phenomenology of the Standard Model and viable extensions at hadron colliders. We develop methods for accurate theoretical predictions, taking into account important radiative e ects. The main objectives can be summarized as follows. 1. MULTI-PARTON PRODUCTIONDevelop innovative methods for multi-parton production including virtual and real radiative effects. This incorporates analytic and numerical methods for the automated evaluation of one-loop amplitudes of arbitrary processes in the SM and extensions of the SM at the parton level.2. HIGH PRECISION THEORETICAL PREDICTIONS AT NNLO Develop further modern methods for fully di erential calculations at next-to-next-to-leading-order (NNLO) in QCD perturbative expansions, and obtain precise predictions for processes where next-to-leading- order (NLO) accuracy is not sufficient. This includes Higgs boson production and decay, jet production, top-quark production and decay, muon decay, and decays of the B-meson.3. LOOP AMPLITUDES IN SUPERSYMMETRIC YANG MILLS THEORIES AND QCD FACTORIZATIONStudy multi-loop amplitudes in Yang Mills theories with extended unbroken supersymmetry. This includes proofs of striking factorization conjectures, and examining their implications for the solvability of Yang-Mills theories with extended supersymmetry. We also study the factorization properties of QCD amplitudes and resummation of logarithmic contributions. This includes the proof or disproof of conjectures for the functional form of universal infrared singularities using powerful computational methods.4. COMPOSITE HIGGS MODELS AND MODELS IN EXTRA DIMENSIONS Study the symmetry breaking patterns in composite Higgs models and their analogs with extra dimensions, as well as their combatibility with electroweak precision tests and available experimental data. Distinguishing a Standard Model Higgs boson from a composite Higgs boson. |

Direct link to Lay Summary | Last update: 21.02.2013 |

Name | Institute |
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Publication |
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Implications of QCD radiative corrections on high-pT Higgs searches |

Inclusive Higgs boson cross-section for the LHC at 8 TeV |

The Fully dierential hadronic production of a Higgs boson via bottom quark fusion at NNLO |

Probing the low transverse momentum domain of Z production with novel variables |

Total cross-section for Higgs boson hadroproduction with anomalous Standard-Model interactions |

NNLO phase space master integrals for two-to-one inclusive cross sections in dimensional regularization |

The discrete composite Higgs model |

Higgs production cross-section in a Standard Model with four generations at the LHC |

QCD predictions for new variables to study dilepton transverse momenta at hadron colliders |

On the factorization of overlapping singularities at NNLO |

Loop lessons from Wilson loops in N=4 supersymmetric Yang-Mills theory |

Simple and Realistic Composite Higgs Models in Flat Extra Dimensions |

Probing the low transverse momentum domain of Z production with novel variables |

QCD predictions for new variables to study dilepton transverse momenta at hadron colliders |

The discrete composite Higgs model |

The fully differential decay rate of a Higgs boson to bottom-quarks at NNLO in QCD |

Number | Title | Start | Funding scheme |
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117873 | Perturbative computations in gauge theories for collider experiments | 01.10.2007 | Project funding (Div. I-III) |

143781 | Higgs and Drell-Yan production at NNNLO in QCD | 01.10.2012 | Project funding (Div. I-III) |

We study the phenomenology of the Standard Model and viable extensions at hadron colliders. We develop new methods for accurate theoretical predictions, taking into account important radiative effects. The objectives are cross-sections for complicated processes with many particles in final state, cross sections for the Higgs bosson, loop amplitudes in supersymmetric theories and physics predictions with models in extra dimensions.

Swiss National Science Foundation (SNSF)

Wildhainweg 3P.O. Box

CH-3001 Bern

Phone +41 31 308 22 22

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