Multicentre metrics and harmonic superspace |
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| Affiliation: | 1. Laboratoire de Physique Théorique de l''Ecole Normale Supérieure, 24, rue Lhomond, 75005 Paris, France;2. LPTHE, Université Paris VII, Tour 24-5° étage 4, place Jussieu, 75251 Paris Cedex 05, France;1. Max–Planck–Institut für Physik, Werner–Heisenberg–Institut, 80805 München, Germany;2. Department of Physics Northeastern University, Boston, MA 02115, USA;1. Lehrstuhl A für Mathematik, RWTH Aachen, 52056 Aachen, Germany;2. Korteweg–de Vries Institute, University of Amsterdam, P.O. Box 94248, 1090 GE Amsterdam, The Netherlands;1. School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, Scotland, UK;2. Mathematical Institute, University of Oxford, Oxford OX2 6GG, England, UK;3. Higgs Centre for Theoretical Physics, School of Physics and Astronomy, The University of Edinburgh, Edinburgh EH9 3JZ, Scotland, UK;4. Kavli Institute for Theoretical Physics, University of California, Santa Barbara, CA 93106-4030, USA;1. Janusz Gil Institute of Astronomy, University of Zielona Góra, Licealna 9, PL-65-407, Zielona Góra, Poland;2. Institute of Physics, University of Zielona Góra, Licealna 9, PL-65-407, Zielona Góra, Poland |
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| Abstract: | We develop a procedure for constructing a possible harmonic superspace lagrangian for any d = 4 multicentre metric and show that the lagrangians leading to such metrics are characterized by the existence of a U(1) of Pauli-Gursey invariance. As an application, the mixed Eguchi-Hanson-Taub-NUT metric is shown, by explicit calculations, to be the double Taub-NUT metric. |
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