The LHC

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Across
  1. 1. Machine designed to smash particles together (8)
  2. 2. The Higgs boson helps explain why particles have this (4)
  3. 7. Hypothetical substance possibly studied at the LHC (4, 6)
  4. 8. Organization operating the Large Hadron Collider (4)
  5. 10. Approximate cost to build the LHC (4, 7, 7)
  6. 11. Energy field giving particles mass (5, 5)
  7. 13. Particles commonly collided in the LHC (7)
  8. 14. Theory describing fundamental particles and forces (8, 5)
  9. 15. Theoretical framework for fundamental particles (7, 5)
  10. 16. Two countries where the LHC is located (11, 6)
Down
  1. 1. System keeping the LHC at near absolute zero (10)
  2. 3. Technology used to steer LHC particles (15, 7)
  3. 4. Circumference of the LHC tunnel (10, 10)
  4. 5. Field of science studying subatomic particles (8, 7)
  5. 6. Particle discovered at the LHC in 2012 (5, 5)
  6. 9. Cosmic event simulated by high-energy collisions (3, 4)
  7. 12. Powerful particle accelerator at CERN (5, 6)