- Elementary Particles, Quantum Field Theory 35
- Quantum Field Theories, String Theory 34
- Nuclear Physics, Heavy Ions, Hadrons 25
- Astronomy, Astrophysics and Cosmology 24
- Measurement Science and Instrumentation 24
- Nuclear Energy 24
- Classical and Quantum Gravitation, Relativity Theory 10
- Quantum Physics 10
- Astrophysics and Astroparticles 1