Experimental Physics of Fundamental Interactions

Academic year 2026/2027
Lecturer Franco Ligabue, Alberto Lusiani

Examination procedure

Seminar-like presentation on a topic of choice from the course.

Prerequisites

Master’s degree course (4th or 5th year). Prerequisites: special relativity, quantum mechanics. Particle-matter interactions (principles of operation of particle detectors) – recommended but not compulsory.

Syllabus

  • Historical and general Standard Model introduction
  • Particle classification and fundamental interaction classification. Relativistic kinematics (reminders), fundamental interactions and Feynman diagrams.
  • Particle detection methods, general principles. Particle beams, acelerator luminosity, cross-sections.
  • Symmetries and conservation laws.
  • Weak interactions and parity violation. CP violation.
  • Electroweak parameters, radiative corrections, pseudo-observables. Electroweak global fits and indirect constraints on quark top mass, and the mass of the Higgs boson before its discovery.
  • General-purpose 4-pi detector at LEP: ALEPH’s design and performances.
  • Precision EW measurements at LEP: lineshape and width of the Z boson, width of the Z boson decaying to invisible, number of light neutrino families, forward-backward asymmetries, and weak mixing angle determination.
  • Physics of the W boson at LEP2: mass determination, WW production cross-section.
  • General-purpose 4-pi detector at LHC: CMS’s design and performances.
  • Precision EW physics at LHC: Higgs discovery and properties determination; measurement of the W boson properties
  • Tau physics (A. Lusiani)
  • Muon g-2 measurement (A. Lusiani)

Bibliographical references

M. Thomson: Modern Particle Physics

Handouts and references therein