Affiliation: | 1. The Department of Chemistry, University of Oxford, The Physical and Theoretical Chemistry Laboratory, , Oxford, OX1 3QZ UK;2. SAI Ltd, , Manchester, M16 9FE UK;3. The Department of Physics, University of Oxford, , Oxford, OX1 3RH UK;4. Physics Department, Brookhaven National Laboratory, , Upton, NY, 11973 USA;5. The Department of Chemistry, University of Oxford, Chemistry Research Laboratory, , Oxford, OX1 3TA UK;6. Rutherford Appleton Laboratory, , Didcot, OX11 0QX UK |