Particle Physics Group




Manchester LHCb Group


LHCb is a dedicated experiment at the LHC to study new physics effects through matter-anti-matter asymmetries (CP violation) and rare decays in heavy flavour (beauty and charm) quarks.


current group members


The group has a major involvement in the LHCB Vertex Locator  VELO , the precision silicon vertex detector within which the proton-proton collisions occur. The detector is used to identify the Beauty and Charm mesons from their flight distance, both online and in the trigger. The active detector is located only 8mm from the LHC beam. Key areas of responsibility include: VELO software, data processing algorithms, experimental control system, alignment, resolution measurements and tracking errors, and radiation damage studies. 

The group is active in developing the new detector for the LHCb upgrade, where it has major hardware responsibilities for the pixel module assembly and the FPGA data processing algorithms.

The group also performs machine background studies and beam dynamics at the interface between the experiment and the LHC accelerator.

If you are interested in joining the group please contact us. Opportunites are available for scholarship funded and self-funded PhDs.


last update: March 2017

The manchester group concentrates on studying decay channels with the potential for discovering new physics effects and extending the LHCb programme beyond the baseline B-physics. Key areas in which we are contributing are described below.

Charm Physics: The group is particularly active in charm physics, where it is responsible for making key measurements of mixing, direct and indirect CP violation in D decays. The group’s analyses include Dalitz plot analyses, lifetime analyses, studying charm baryon decays, rare and forbidden decays and measuring charm cross-sections.

Lepton Flavour Violation & Very Rare Decays: We have extended  the LHCb physics programme to search for a range of rare decays that are forbidden in the standard model, setting a number of world’s best limits. We are studying charged lepton flavour violation from a range of τ decays, rare D decays and the strong CP problem.  

Semi-leptonic b-decays: Semi-leptonic B decays remain relatively little explored. The group is making measurements of the semi-leptonic asymmetry, where D0 have obtained evidence for a deviation for the standard model, and are using semi-leptonic B decays to trigger and tag D meson decays for charm physics CP violation studies.

Charmless B decays: The group investigates charmless B decays to baryonic final states, and has discovered several new decay modes. We also search for CP violation in beauty and charmed Baryons

Electroweak and Top Physics: LHCb probes the production of EW bosons and top quarks in a unique region of kinematic phase space. Our measurements of cross-sections and asymmetries provide precision tests of the Standard Model and constrain the partonic structure of the proton


    Rob Appleby

   Chris Parkes (group leader)

    Marco Gersabeck

    George Lafferty (Emeritus)


    Mark Williams (Royal Society URF)

Research Staff:

    Will Barter

    Silvia Borghi

    Jolanta Brodzicka

    Stefano De Capua

    Andrew McNab

    Deepanwita Dutta

PhD Students:

    Shanzhen Chen

    Suzanne Klaver

    Giulio Dujany

    Kevin Maguire

    Lorenzo Capriotti

    Dominik Mueller

    Chris Burr

    Gediminas Sarpis


    Roger Barlow

    Tomasz Szumlak

In addition to these people listed above, for whom LHCb is there only/primary experimental project, a number of other high energy physics group members are very actively working on LHCb projects notably for the VELO upgrade. 

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