AQA A-level Physics - Particle Physics

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Across
  1. 8. ______ production - when a high energy photon turns into a particle and anti-particle.
  2. 9. Small unit of distance.
  3. 11. When an electron meets a positron, for example.
  4. 14. Particles with opposite quantum properties, e.g. charge and spin.
  5. 17. An exchange particle between quarks.
  6. 18. Particles created by the strong interaction but decaying via the weak.
  7. 19. A quark-antiquark pair.
Down
  1. 1. Protons and neutrons while in a nucleus.
  2. 2. Diagrams representing particle interactions.
  3. 3. A meson that has a strange quark or antiquark.
  4. 4. _______ charge - the charge:mass ratio of a particle.
  5. 5. Adjective describing the exchange particle of the electromagnetic interaction.
  6. 6. Discrete amounts of energy.
  7. 7. Electrons and muons, for example.
  8. 10. A wave packet of electromagnetic radiation.
  9. 12. A particle that only experiences the weak interaction.
  10. 13. Particles that interact via the strong interaction.
  11. 15. An exchange particle of the strong interaction.
  12. 16. Consists of three quarks.