Particle Physics

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Across
  1. 4. a convenient unit of charge used in particle physics (hint: not C) (1)
  2. 5. another word for quark ‘type’ (7)
  3. 6. 2nd generation quark with charge of -1/3e (6)
  4. 9. charm and __________ are third generation quarks (6)
  5. 11. number of neutrons in 14/6 C (5)
  6. 12. a particle with a quark number of -3 (10)
  7. 14. a lepton with a charge of zero (8)
  8. 17. name for v (12)
  9. 18. quark composition of a deltaminus
  10. 25. name for ve (8,8)
  11. 26. antiparticles have opposite _____ compared to their ‘normal’ particle counterparts (6)
  12. 27. quark number = 0, charge = -1
  13. 29. hadron: charge = 0, quark number = 3 (7)
  14. 30. a particle which doesn’t technically have an antiparticle (5)
  15. 31. 1st generation fundamental particle with a charge of +2/3 (2,5)
  16. 33. a particle never found on its own (5)
Down
  1. 1. quark number for v (4)
  2. 2. simplest atom (8)
  3. 3. e+ has a ___________ number of -1 (6)
  4. 7. a meson is a particle made up of a quark and _____ (9)
  5. 8. a 1st generation hadron with one name but two possible quark compositions (2,4)
  6. 10. the process that occurs when a particle and its antiparticle meet (12)
  7. 13. leptons and quarks are all __________ particles (11)
  8. 15. another name for an anti-electron, e+ (8)
  9. 16. the number of particles in the Standard Model of particle physics (6)
  10. 19. the maximum number of quarks in a particle (5)
  11. 20. a proton or a neutron (7)
  12. 21. electrons and electron neutrinos belong to the 1st generation family of _____ (6)
  13. 22. the centre of an atom (7)
  14. 23. full name for t (3,5)
  15. 24. two of these particles are found in a neutron (4,5)
  16. 28. uud
  17. 30. particles and their associated antiparticles have identical _____ (4)
  18. 32. quark composition of a deltadoubleplus