Grin, Daniel and Smith, Tristan and Kamionkowski, Marc (2009) Axion Constraints in Non-standard Thermal Histories. In: Sources and detection of dark matter and dark energy in the universe. AIP Conference Proceedings (1166). American Institute of Physics , Melville, NY, pp. 119-125. ISBN 978-0-7354-0703-9 http://resolver.caltech.edu/CaltechAUTHORS:20100804-142905281
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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|
|Additional Information:||© 2009 American Institute of Physics. Issue Date: 8 September 2009. D.G. was supported by the Gordon and Betty Moore Foundation and thanks the organizers of DM08. T.L.S. and M.K. were supported by DoE DE-FG03-92-ER40701 and the Gordon and Betty Moore Foundation.|
|Subject Keywords:||Dark matter; axions; reheating; large-scale structure; big-bang nucleosynthesis|
|Classification Code:||PACS: 95.35.+d; 11.30.Pb; 98.80.Ft|
|Official Citation:||Axion Constraints in Non-standard Thermal Histories Daniel Grin, Tristan Smith, and Marc Kamionkowski, AIP Conf. Proc. 1166, 119 (2009), DOI:10.1063/1.3232168|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||04 Aug 2010 23:27|
|Last Modified:||26 Dec 2012 12:17|
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