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Bounds on very low reheating scenarios after Planck

AuthorsFernández de Salas, Pablo; Lattanzi, Massimiliano; Mangano, G.; Miele, Gennaro ; Pastor, Sergio ; Pisanti, O.
KeywordsPrimordial abundance
Early universe
Issue Date23-Dec-2015
PublisherAmerican Physical Society
CitationPhysical Review - Section D - Particles and Fields 92 (12):123534 - 9 (2015)
AbstractWe consider the case of very low reheating scenarios [T-RH similar to O(MeV)] with a better calculation of the production of the relic neutrino background (with three-flavor oscillations). At 95% confidence level, a lower bound on the reheating temperature T-RH > 4.1 MeV is obtained from big bang nucleosynthesis, while T-RH > 4.7 MeV from Planck data (allowing neutrino masses to vary), the most stringent bound on the reheating temperature to date. Neutrino masses as large as 1 eV are possible for very low reheating temperatures.
Description9 pages.- 9 figures
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevD.92.123534
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