Massive particles in five dimensions |
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| Authors: | E.J. Copeland |
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| Affiliation: | Department of Theoretical Physics, University of Newcastle upon Tyne, Newcastle upon Tyne NE1 7RU, UK |
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| Abstract: | We consider a five-dimensional model of the universe with a dynamical extra dimension. Calculations of the ratio of the number density of Kolb and Slansky type pyrgons to that photons show the model to be uncacceptable. However by inserting N matter fields into the original action, it becomes possible to reduce the ratio below the observational bound. |
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