### Introduction to the course

Theoretical aspects of Quantum Chromodynamics, the theory of strong interactions.

Objective: Basic knowledge of perturbative and non-perturbative aspects of Quantum Chromodynamics sufficient to be able to perform simple calculations and to understand modern publications on this research field.

Content: QCD Lagrangian and Feynman rules; running QCD coupling and asymptotic freedom; parton model; Altarelli-Parisi equations; jets; basic processes; experimental tests at lepton and hadron colliders; lattice gauge theories; current algebra.

### Lectures notes and addons.

NEW: some indicative questions for the exam.

25 FEB | AL | Introduction to Colour | notes | ref 1,3 | exercises |

4 MAR | AB | Classical QCD Lagrangian, gauge invariance, color algebra | notes | ref 1 | exercises |

11 MAR | AB | Quantum QCD Lagrangian, gauge fixing, Feynman rules | notes | ref 1 | exercises |

18 MAR | AL | Renormalization of QCD | notes | ref 1 | exercises |

25 MAR | AL | Renormalization of QCD - Beta function | notes | ref 1 | exercises |

1 APR | AB | Renormalization Group Equations, asymptotic freedom | notes | ref 1 | exercises |

15 APR | AL | e+ e- to hadrons | notes | ref 1,2,3 | exercises |

22 APR | AL | Deep Inelastic Scattering | notes | ref 3,2,1 | exercises |

29 APR | AL | Deep Inelastic Scattering | notes | ref 3,2,1 | exercises |

6 MAY | AB | Drell-Yan | notes | ref 2,4,5 | exercises |

20 MAY | AB | Infrared and collinear singularities in QCD | notes | ref 6 | exercises |

27 MAY | AB | Hadronic final states: jets, event shapes etc. | notes | ref 1,3 | exercises |

3 JUN | AL | Parton Showers, Hadronization, Underlying Event | notes | ref 3,7 | exercises |

### Bibliography - references

- Foundations of Quantum Chromodynamics: An Introduction to Perturbative Methods in Gauge Theories, by Taizo Muta
- QCD and Collider Physics by R.K. Ellis, W.J. Stirling and B.R. Webber
- Quantum Chromodynamics: High Energy Experiments and Theory by Günther Dissertori, Ian G. Knowles, Michael Schmelling
- Handbook of Perturbative QCD, by the CTEQ collaboration
- Large perturbative corrections to the Drell-Yan process in QCD by Altarelli, Ellis and Martinelli
- Factorization of Hard Processes in QCD by John C. Collins, Davison E. Soper, George Sterman
- Dressing the partons and Kingdoms of Modelling by F. Krauss (from the Pauli center for theoretical studies Lecture series on "The Infrared Structure of Gauge Theories")