Collaboration. We lead the B-physics studies, which will investigate the origin of CP violation. Lancaster also plays a leading role in the development of computing for ATLAS, and worldwide computing Grids. We continue to investigate semiconducting tracking detectors for the high radiation levels in ATLAS, both to predict and minimize the loss of performance of the existing detector and to design a new detector for the proposed high-luminosity upgrade. Please see our website for further information.
The Tevatron Collider (Fermilab, USA) Prof P N Ratoff, Drs I A Bertram, G V Borissov, H Fox, A Sopczak and M Williams. This group is working on the DZERO experiment at the 2 TeV proton- antiproton collider. It will be the world’s highest energy particle accelerator until the start-up of the LHC. Our contributions include world-leading measurements of B-physics (including the first direct evidence for matter- antimatter mixing in the Bs system), major contributions to the DZERO track reconstruction software a major role in the production of simulated data with our 400-processor PC farm. Please see our website for further information.
T2K Neutrino Oscillations (Kamioka/Tokai, Japan) Prof P N Ratoff, Drs I A Bertram, A Chilingarov, A J Finch, A Hatzikoutelis and L Kormos. This project entails the possibility of observing CP violation in the neutrino sector. The Lancaster group is building the downstream module of the electromagnetic calorimeter which is part of the ‘near detector’. This is essential for measuring the neutrino beam flux and energy spectrum and for studying background processes important for the electron neutrino observation measurement. Please see our website for further information.
Accelerator Science and Technology (Daresbury, UK) Profs P N Ratoff and S Chattopadhyay, Drs A J Finch and R Seviour.
The work is centred on the activities of the Cockcroft Institute and currently involves the development of new materials for RF cavities, design studies for a polarized positron source for an e+
e- also Electromagnetism, Geometry and Gravity). linear collider, and theory (see
CONDENSED MATTER PHYSICS Equipment for the research includes an MBE machine, several dilution refrigerators including the world’s best- performing one (designed and built in Lancaster), nuclear demagnetization cryostats for experiments below 2 K, a helium isotopic separation plant producing the purest 4
He in
the world, evaporators, sputtering units, nanoindenters, mass spectrometers, diffusion furnaces to 1100ºC, the UK’s principal liquid-phase-epitaxy preparation system, class-100 clean rooms for semiconductor device processing and laser- Doppler systems for blood flow measurements.
Microkelvin Physics
Profs G R Pickett, S N Fisher, A M Guénault (Emeritus), Drs I Bradley, R P Haley, R Schanen, P Skyba and V Tsepelin. We study new exotic phenomena in superfluid 3
He at the
lowest achievable temperatures using a cluster of dedicated nuclear refrigerators which are arguably the best in the world. We use NMR to study superfluid 3
He and probe the
coupled spin and orbital dynamics of the superfluid state while quasiparticle beam experiments allow us to study unconventional (Andreev) ballistics and quantum turbulence. We investigate the properties of the interface between the two quantum phases (the A and B phases of superfluid 3
He)
which provides the most coherent phase boundary to which we have experimental access, throwing light on fundamental properties of phase transitions.
Since the superfluid 3 He wavefunction closely mimics the
structure of spacetime, all these experiments have cosmological implications. We were recently highlighted by ISI Essential Science Indicatorsas the most prolific experimental group in superfluidity worldwide. Please see our website for further information.
Dynamics and Turbulence Prof PVE McClintock, L Skrbek, G G Ihas, Drs V B Efimov, A Ganshyn, M Giltrow, I A Khovanov, G Kolmakov, DG Luchinsky, A Stefanovska and R Tindjong. Turbulence represents a major unsolved problem in physics of huge importance in practical applications. In collaboration with partners in Birmingham, Florida and Prague, we aim to understand how classical turbulence is modified in a superfluid, where flow is severely restricted by the quantization of circulation. Our experiments on wave turbulence in superfluid 4 rogue waves on the ocean.
He are illuminating the origin of Science and Technology 203
Physics
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