New regions for a chameleon to hide
Abstract
We show that inclusion of an extremely small quartic coupling constant in the potential for a nearly massless scalar field greatly increases the experimentally allowed region for the mass term and the coupling of the field to matter.
- Publication:
-
Journal of High Energy Physics
- Pub Date:
- August 2006
- DOI:
- arXiv:
- arXiv:hep-ph/0603057
- Bibcode:
- 2006JHEP...08..002F
- Keywords:
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- High Energy Physics - Phenomenology;
- Astrophysics;
- High Energy Physics - Theory
- E-Print:
- 17 pages, 1 figure,refs added, equation typos corrected, conclusions unchanged