The LHCb Detector

Diagram of the LHCb Detector

Protons arriving from the left and right collide in the vertex detector (yellow, on the far left) which is the most precise vertex detector at the LHC. The ability to reconstruct the B production and decay vertices is vital to our physics program.

The two RICH detectors are essential for particle identification, in particular to distinguish between pions and kaons in the final state. Two detectors are needed to cover the whole momentum range. Oxford holds an instrumental role in the realisation, maintenance and exploitation of the RICH detectors.

Either side of a 1.1Bm dipole field, are the tracking detectors that provide efficient track reconstruction. The momentum of charged particles can be measured by the amount they are deflected in the magnetic field.

The electromagnetic, hadron and muon calorimeters (on the right) measure the energy and position of charged and neutral particles. The ECAL will enable the reconstruction of photons.

The original technical reports on the different subdetectors are available here.
The performance on data of the different subdetectors are available here.