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Abstract：
In this talk I will present a systematic analysis of dark matter production in an out-of-equilibrium state during/after inflationary reheating. The phase space distribution and the relic abundance of dark matter are determined in general by the inflaton mass and the reheating temperature, and in some cases, by the thermalization rate of the decay products of the inflaton. I will then show that for non-cold dark matter, the matter power spectrum features a cutoff scale solely determined by the equation-of-state parameter, and propose a mapping procedure to translate the Lyman-$\alpha$ bound on the mass of warm dark matter to out-of-equilibrium scenarios without the need for numerical computations. The bounds that we obtain range from dark matter masses > EeV for inflaton-decay production with a low reheating temperature, to sub-keV masses for non-thermal freeze-in.
Biography：
Marcos A. G. Garcia is a “Severo Ochoa” Postdoctoral Research Fellow at the Instituto de Fisica Teorica (IFT) UAM-CSIC in Spain since 2019. He was a Postdoctoral Research Associate at Rice University (USA) from 2016 to 2019. He has a Ph.D. in Mathematical Physics from UNAM (Mexico, 2011), and a Ph.D. in Physics (High Energy Theory) from the University of Minnesota (USA, 2016). His main research interest is the construction and study of particle physics models for the early Universe, in particular for inflation and dark matter.
Zoom Information: https://zoom.com.cn/j/62062463076
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