Lyth, David H. and Moroi, Takeo (2004) The masses of weakly-coupled scalar fields in the early universe. Journal of High Energy Physics, 2004 (5). 004.
Full text not available from this repository.Official URL: http://dx.doi.org/10.1088/1126-6708/2004/05/004
Abstract
We consider the effective mass-squared in the early Universe, of a scalar field which has only Planck-suppressed couplings with light fields and whose true mass is less than the Hubble parameter H. A detailed investigation shows that the effective mass-squared generically is of order ±H2 during inflation and matter-domination, but much smaller during radiation domination. We consider the special circumstances under which the mass-squared may be much bigger or much smaller than the generic value.
| Item Type: | Article |
|---|---|
| Journal or Publication Title: | Journal of High Energy Physics |
| Uncontrolled Keywords: | Cosmology of Theories beyond the SM ; Physics of the Early Universe |
| Subjects: | Q Science > QC Physics |
| Departments: | Faculty of Science and Technology > Physics |
| ID Code: | 23929 |
| Deposited By: | ep_ss_importer |
| Deposited On: | 24 Feb 2009 10:28 |
| Refereed?: | Yes |
| Published?: | Published |
| Last Modified: | 26 Jul 2012 16:18 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/23929 |
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