Lecture by Professor Joe Izen - Dark Matter/Large Hadron Collider

Lecture by Professor Joe Izen - Dark Matter/Large Hadron Collider
From AUD $20.00
  • Duration: 75 Minutes (approx.)
  • Location: Gingin, WA
  • Product code: PV0VJF

The mass of galaxies and galactic clusters doesn’t add up! The mass of all the protons, neutrons, and electrons that comprise stars, planets, interstellar and intergalactic gas clouds, and people are just 15% of the mass needed to explain the rotational period of galaxies, the collisions of galactic clusters, and the gravitational lensing by galaxies and galaxy clusters.  The remaining 85% is “Dark”. Dark Matter is still known almost exclusively from its gravitational influence, but if ordinary matter feels gravity plus at least three known forces, perhaps there are analogous Dark Side forces. At CERN’s Large Hadron Collider (LHC), the hunt is on for the Dark Photon, a gauge boson akin to the electromagnetic photon, but for a conjectured Dark Force between Dark Matter particles. This talk will describe the ATLAS experiment’s search for Dark Photons using LHC collision data. A bonus attraction will be home movies from inside the ATLAS detector located on the LHC beam line, 60 m below the surface of Geneva, Switzerland.