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The LHCb Experiment


Birmingham group: Dr Simone Bifani, Ryan Calladine, Georgios Chatzikonstantinidis, Nathanael Farley, Dr Phil Ilten, Prof. Cristina Lazzeroni, Jon Plews, Dr Dima Popov, Dr Tonino Sergi, Dr Mark Slater, Dr Nigel Watson, Tim Williams, Kristian Zarebski
LHCb detector

LHCb is an experiment optimised to study b and c hadron decays at the Large Hadron Collider (LHC) at CERN, currently collecting and analysing data. Its primary goals are to study CP violation and to search for physics beyond the Standard Model, e.g. by measuring "rare" decays with very high precision.

LHCb is a general purpose detector with angular coverage restricted to the region between 10 and 250-300 mrad from the proton beam axis, operating at a lower luminosity that ATLAS and CMS to reduce the number of overlapping interactions per bunch crossing. It has excellent reconstruction of multiple vertices per event and measurement of proper decay times using silicon microstrip detectors, as well as particle identification provided by Ring Imaging Cherenkov detectors.

Our technical roles in the project include responsibility in the detector simulation for GEANT4 and its physics models, joint leadership of the simulation group (Ilten), and simulation of the LHCb upgrade project (Popov), data management/grid operations (Slater) and RICH test beam coordination (Sergi). We are developing the (LHCbPR2) benchmarking and regression testing framework, used for simulation and other applications, as well as its individual physics-based tests. We are also working on the electronics and system tests for the RICH upgrade, and PMT ageing tests.

We have a wide range of physics interests and are always willing to consider others. Recent examples of our work include searching for physics beyond the standard model by making tests of lepton universality ("RK*" [1]), searching for "dark" photons [2], searching for rare decay modes of b baryons [3, 4], charmless decays of B mesons [5], and electroweak physics of gauge bosons [6, 7, 8, 9].

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