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Details of Grant 

EPSRC Reference: GR/R26672/01
Title: Theoretical treatment of key processes in the trapping of antihydrogen and the muon catalysed fusion cycle
Principal Investigator: Armour, Professor E
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Department: Sch of Mathematical Sciences
Organisation: University of Nottingham
Scheme: Standard Research (Pre-FEC)
Starts: 01 December 2001 Ends: 30 November 2004 Value (£): 134,827
EPSRC Research Topic Classifications:
Atoms & Ions
EPSRC Industrial Sector Classifications:
No relevance to Underpinning Sectors
Related Grants:
Panel History:  
Summary on Grant Application Form
The main loss of antihydrogen (H) trapped at very low temperatures is brought about by collisions with He or, more frequently, with H2. A PDRA and I will start by considering the simpler system, He + H, and carry out calculations of the potential between H and He using the Rayleigh-Ritz variational method and CI-type basis sets which facilitate the calculation. We will go on to use our potential to calculate the necessary scattering parameters to simulate the evolution of an H He mixture under the conditions in which H is to be trapped.Depending on an estimate of the accuracy of this potential and what would be most helpful for experimentalists working on the trapping of H, we will either continue by improving the accuracy of the above calculations by using basis sets more suitable for representing an electron and a positron in close proximity, and follow this by calculations and simulations corresponding to the above for H2+ H, or vice-versa.If time permits, we will adapt our treatment of the key tN+ Dz reaction in the MCF cycle, carried out under a previous grant, with a view to including scattering states with non-zero total angular momentum.
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Organisation Website: http://www.nottingham.ac.uk