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The LHCb detector (Large Hadron Collider beauty experiment) is a 21m long, 10m high and 13 m wide detector and it’s designed to study CP violation and other rare phenomena in decays of hadrons with heavy flavours, in particular B’s mesons.
Interest in CP violation comes not only from elementary particle physics but also from cosmology, in order to explain the dominance of matter over antimatter observed in our universe, which could be regarded as the largest CP violation effect ever seen. The LHCb experiment will improve significantly results from earlier experiments both quantitatively and qualitatively, by exploiting the large number of different kinds of b hadrons produced at LHC. B mesons are most likely to emerge from collisions close to the beam direction, so the LHCb detector is designed to catch low-angle particles. Its key elements will be its vertex detector, that  will measure charged particle tracks, and its Ring-Imaging Cherenkov, or RICH detectors, that will identify different kinds of particles. Some calculations...
565 scientists from 47 universities (Santiago University, among them) and laboratories from 15 countries  are involved in the design and construction of LHCb, with support from many hundreds of technicians and engineers.