The LHCb RICH upgrade for the high luminosity LHC era

The hadron particle identification provided by the RICH system in LHCb over a momentum range of 2.6-100 GeV/c has been a key element of the success of the experiment and will remain equally important for Upgrade II. With luminosities expected up to 7.5 times those expected for Upgrade I and 75 times those realised in the past, maintaining the current excellent particle identification performance demands a substantial improvement in the precision of the measurements of the space and time coordinates of the photons detected in the RICH. It will require a readout strategy with high-resolution timing information and making significant improvements in the resolution of the reconstructed Cherenkov angle.

Automated summary

The hadron particle identification provided by LHCb's RICH system is crucial for the success of the experiment, and it will continue to play a significant role in Upgrade II. To maintain the current excellent particle identification performance, substantial improvements in the precision of measuring the space and time coordinates of detected photons in the RICH and in the resolution of the reconstructed Cherenkov angle are required.