Particle Physics Group





The Experimental Particle Physics Group is involved with several major international collaborations working at facilities in both Europe and the United States. Three of these collaborations, H1, BaBar, and Dě are currently taking data, whilst a fourth, ATLAS, is being constructed.


The ATLAS Collaboration is preparing a detector to be installed at the Large Hadron Collider (LHC) currently being constructed at CERN. This facility is due to provide colliding beams of protons, to give a total centre of mass energy of 14 TeV, in 2007. This collider will considerably extend the energy range of the search for new particles and is likely to provide some exciting surprises! The Manchester Group is involved both in the construction of the silicon tracker at the centre of the detector, and in the development of the fast data acquisition system.


The BaBar Collaboration has built a detector at the PEP II e+e- asymmetric collider at SLAC in California. This experiment allows a detailed study of the CP violation effects that could be responsible for the lack of anti-matter in the Universe. Our Group is also analysing the data from this experiment to study charm, bottom and tau physics. Manchester constructed part of BaBar's electromagnet calorimeter.


Manchester is working on the global linear collider project and is currently engaged in R&D for the CALICE project.

The Dě experiment at the Tevatron collider at Fermilab near Chicago detects the products of the highest energy collisions currently available anywhere in the world. Protons and antiprotons, each with energies approaching 1TeV, are brought into head-on collision at the centre of the detector, and the products of these interactions are analysed for evidence of new particles. The Higgs boson and the first supersymmetric particles could well be found here in the next few years. Manchester was responsible for part of the Dě triggering system.

GRID and e-Science

The Grid Working Group is developing the technologies needed for the LHC computing infrastructure, and applying them to e-Science problems in other disciplines.


The H1 experiment is sited at the HERA electron-proton colliding beam facility in Hamburg. It studies the interactions between the electron and the point-like quark constituents of the proton. Analysis of the data allows detailed study of Quantum Chromodynamics (QCD) in action, and investigations into the structure of both the proton and the photon. The Manchester Group built and operates the muon detectors, parts of the forward tracking system and the trigger and readout electronics.


Manchester is a member of the OPAL collaboration at CERN.

Super Nemo

The Super Nemo project aims to explore neutrinoless double beta decay in order to determine the nature of neutrino mass.

Other Projects

The Particle Physics Group at Manchester is also involved in neutrino detection experiments and it has a team working on artificial neural networks for cancer management.


Last modified Mon 22 October 2007 . View page history
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