1. The Physical and Theoretical
Chemistry Laboratory, The Department
of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
2. Departamento de Química
Física, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
3. Institute
of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
4. Department of Physics and Astronomy, LaserLaB, Vrije Universiteit, Amsterdam, De Boelelaan
1081, 1081 HV Amsterdam, The Netherlands
5. Laboratoire Francis Perrin,
Bâtiment 522, DRECEM/SPAM/CEA Saclay, 91191 Gif sur Yvette, France