Particle Physics Crossword

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