CMS far forward

The Zero Degree Calorimeter (ZDC) is part of the CMS detector. The ZDC system sits 140m down the beam line and is able to catch particles very close to the beam axis. This event display shows an 80 GeV photon candidate from a glancing blow between two colliding protons. The energy activated the electromagetic section of the ZDC which recorded its absorption as a deposit of a small amount of charge. Note the angle (theta-x): it is expressed in microradians, which is pretty close to zero degrees.

Credit: Copyright CERN for the benefit of the CMS Collaboration.

Astrophotographer1 faved this
1,003 views
1 fave
0 comments
Taken on October 8, 2010
  • Show EXIF
This photo is in 3 groups
This photo is in 1 album

Additional info

  • Viewing this photo Public
  • Safety level of this photo Safe
  • S Search
    Photo navigation
    < > Thumbnail navigation
    Z Zoom
    B Back to context