One set of two questions will be asked among the following:
1.a) What are the particles present in the room? What are their properties, their quantum numbers, and how do they interact?
1.b) What are the properties of cosmic-ray showers, and how are they observed at the highest energies?
2.a) How are the forces described in modern quantum theories? In particular, how are the four elementary forces accounted for?
2.b) What is the evidence for dark matter? What is the density of Dark matter?
3.a) Define the Lie Group SU(2). Give three examples of its uses.
3.b) What are the broad classes of explanations of the dark matter puzzle?
4.a) Give three examples of continuous groups, and of their use in physics.
4.b) Describe the LIGO and Virgo detectors and relate their characteristics to those of gravitational waves.
5.a) What are the main properties of quantum chromodynamics?
5.b) What are the main results of neutrino astronomy?
6.a) What is a gauge theory? How does one build a gauge theory? Give two examples.
6.b) What can one deduce from the observed black-hole mergers?
7.a) Explain the meaning of the following diagrams. What do they describe, how are they built, and what discovery did they lead to? 
7.b) Describe the AMS02 experiment, and discuss its main results.
8.a) Explain what the Brout-Englert-Higgs mechanism does, and why the Higgs boson was so hard to detect.
8.b) How are dark matter particles searched for? What are the results so far?
9.a) What are the properties of electroweak interactions?
9.b) What can one deduce from the observed neutron-star merger?
10.a) Explain what neutrino oscillations are and explain briefly what their consequences are.
10.b) What are the sources of detected gravitational waves? What are their characteristics? What other sources could be detected?
11.a) How was CP violation discovered, what does it imply and how is it described in the standard model?
11.b) What are the characteristics of KAGRA, the Einstein Telescope, and LISA? What kind of events can they detect?
12.a) How have neutrino oscillations been proven to exist? What are the characteristics of the detectors used?
12.b) What is multimessenger astronomy? What did it achieve so far?
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