University of Leipzig   –   Faculty of Physics

Module 12-PHY-MWPXT2

Elementary Particles
and their

Prof. Dr. Th. Naumann

Deutsches Elektronen-Synchrotron


Lectures:     Thursday   11.00 + 13.30 h    SR 218

  1. Elementary Particles and their Interactions
  2. The Quark Model
  3. Symmetries and Conservation Laws
  4. Gauge Theory of Weak Interactions
  5. Gauge Theory of Strong Interactions
  6. Grand Unification and Cosmology
Download and print the lecture script  (PDF, 40 MB)
and find useful literature.

More particle physics information can be found in the Particle Data Group web page
or in its PDG Live interactive version. Here you also find summary articles on the Try more particle physics links   or visit the web sites of
CERN,  the European Laboratory of Particle Physics  or
DESY,  the Deutsches Elektronen-Synchrotron.

A short introduction to the Standard Model of electroweak interactions can be found in: A. Pich
For data analysis in physics see Einführung in Statistik für Physiker.

Exercises:    Tuesday    9.15 h    SR 218
Print all task and info sheets and bring the solved problems to the next exercise!
Scores are given in square brackets. If not the problem is discussed in the exercise.
  1. Exercise: Relativistic Kinematics
    • Lorentz invariants, beta and gamma factors
    • Length contraction and time dilatation
    • Laboratory and centre-of-mass systems
    • Print: kinematics summary page !
  2. Exercise: The Quark Model
    • Print: Overview of the Quark Model
    • Baryon and lepton number, energy and charge conservation
    • Flavor conservation and the strong interaction
    • Flavor change and the weak interaction
    • Quark diagrams of reactions and decays
  3. Exercise: Symmetries and Conservation Laws
    • Print: Clebsch-Gordon coefficients
    • Isospin and SU(2)
    • Charge conjugation C, parity P, and helicity
  4. Exercise: The Four Interactions and their Strength
  5. Exercise: Relativistic Kinematics

  6. Exercise: Relativistic Kinematics

  7. Exercise: The Electroweak Standard Model
  8. Exercise: The Strong Interaction

  9. Examination