Grin, Daniel and Smith, Tristan and Kamionkowski, Marc (2010) Thermal axion constraints in non-standard thermal histories. In: AXIONS 2010. AIP Conference Proceedings (1274). American Institute of Physics , Melville, NY, pp. 78-84. ISBN 978-0-7354-0824-1 http://resolver.caltech.edu/CaltechAUTHORS:20110318-145420435
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Abstract
There is no direct evidence for radiation domination prior to big-bang nucleosynthesis, and so it is useful to consider how constraints to thermally-produced axions change in non-standard thermal histories. In the low-temperature-reheating scenario, radiation domination begins as late as ~1 MeV, and is preceded by significant entropy generation. Axion abundances are then suppressed, and cosmological limits to axions are significantly loosened. In a kination scenario, a more modest change to axion constraints occurs. Future possible constraints to axions and low-temperature reheating are discussed.
| Item Type: | Book Section | ||||||
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| Additional Information: | © 2010 American Institute of Physics. Issue Date: 30 August 2010. D.G. was supported by the Gordon and Betty Moore Foundation and thanks the organizers of Axions 2010. T.L.S. and M.K. were supported by DoE DE-FG03-92-ER40701 and the Gordon and Betty Moore Foundation. | ||||||
| Group: | TAPIR | ||||||
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| Subject Keywords: | Dark matter, axions, reheating, large-scale structure, big-bang nucleosynthesis | ||||||
| Classification Code: | PACS: 14.80.Va; 26.35.+c; 11.30.Cp; 95.35.+d; 98.70.Vc | ||||||
| Record Number: | CaltechAUTHORS:20110318-145420435 | ||||||
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:20110318-145420435 | ||||||
| Related URLs: | |||||||
| Official Citation: | Thermal axion constraints in non-standard thermal histories Daniel Grin, Tristan Smith, and Marc Kamionkowski, AIP Conf. Proc. 1274, 78 (2010), DOI:10.1063/1.3489561 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 22990 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Tony Diaz | ||||||
| Deposited On: | 18 Mar 2011 22:06 | ||||||
| Last Modified: | 26 Dec 2012 13:05 |
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