Applied Physicist

**Job Description**: **Introduction** - Are you an applied physicist who wishes to contribute to the RICH System Project, a vital sub-detector of the LHCb experiment dedicated to Particle Identification, and searching for hints of new physics through precision measurements in flavour physics? If your answer is yes, then take part_ **Functions** You will join: - The Experimental Physics Department (EP) which carries out basic research in the field of experimental particle physics. It aims at providing a stimulating scientific atmosphere and is an important reference centre for the European physics community. It contributes to the education and training of young scientists. - The LHCb experiment is one of the four large experiments at the LHC of CERN. The experiment is specialized in investigating the tiny difference between matter and anti-matter and searching for hints of new physics. It has been taking data since several years and a major upgrade of its detector has just been finalised and a new one is being prepared to happen in the coming 10 years. - The CERN LHCb detector group (EP-LBD) is contributing significantly to physics analysis, detector design, R&D and running of the LHCb experiment as well as to the development and construction of the LHCb upgrade projects. - The RICH System CERN Team. The RICH system is composed of two RICH (Rich Imaging CHerenkov) detectors. Both assure the positive identification of protons, pions and kaons in a dense particle environment generated by the p-p collisions at high luminosities and 40 MHz collision rate and in a range of momenta spanning between ~9 and 120 GeV/c. In the last 15 years this system has undergone various upgrades and improvements and at present faces the challenge of coming years upgrades, where HL-LHC luminosities will be scaled up to almost 10-fold and the provision of a system with time resolutions better than 100 ps will be critical for the achievement of high hadronic particle identification performance. You will play a central leading role in the development, construction, operation, maintenance and consolidation of the LHCb RICH Upgrade detector system foreseen for the coming years. These activities are joined to the R&D activities in the Cherenkov detector field, where CERN-EP retains leadership and know-how. In particular, you will have a leading role in the R&D and characterization of RICH systems delivering ~0.1mrad and