Matches in SemOpenAlex for { <https://semopenalex.org/work/W3100687547> ?p ?o ?g. }
- W3100687547 endingPage "012" @default.
- W3100687547 startingPage "012" @default.
- W3100687547 abstract "If cosmic inflation was driven by an electrically neutral scalar field stable on cosmological time scales, the field necessarily constitutes all or part of dark matter (DM). We study this possibility in a scenario where the inflaton field s resides in a hidden sector, which is coupled to the Standard Model sector through the Higgs portal λhs s2† and non-minimally to gravity via ξs s2 R. We study scenarios where the field s first drives inflation, then reheats the Universe, and later constitutes all DM. We consider two benchmark scenarios where the DM abundance is generated either by production during reheating or via non-thermal freeze-in. In both cases, we take into account all production channels relevant for DM in the mass range from keV to PeV scale. On the inflationary side, we compare the dynamics and the relevant observables in two different but well-motivated theories of gravity (metric and Palatini), discuss multifield effects in case both fields (s and h) were dynamical during inflation, and take into account the non-perturbative nature of particle production during reheating. We find that, depending on the initial conditions for inflation, couplings and the DM mass, the scenario works well especially for large DM masses, 102 GeV≲ ms≲ 106 GeV, although there are also small observationally allowed windows at the keV and MeV scales. We discuss how the model can be tested through astrophysical observations." @default.
- W3100687547 created "2020-11-23" @default.
- W3100687547 creator A5005438006 @default.
- W3100687547 creator A5007388772 @default.
- W3100687547 creator A5020153885 @default.
- W3100687547 creator A5035123245 @default.
- W3100687547 date "2019-03-05" @default.
- W3100687547 modified "2023-10-03" @default.
- W3100687547 title "Hidden inflaton dark matter" @default.
- W3100687547 cites W1636349672 @default.
- W3100687547 cites W1709693089 @default.
- W3100687547 cites W1893663977 @default.
- W3100687547 cites W1894620804 @default.
- W3100687547 cites W1902265812 @default.
- W3100687547 cites W1908110434 @default.
- W3100687547 cites W1941322486 @default.
- W3100687547 cites W1962167320 @default.
- W3100687547 cites W1969043344 @default.
- W3100687547 cites W1972025889 @default.
- W3100687547 cites W1983957937 @default.
- W3100687547 cites W1989589910 @default.
- W3100687547 cites W1991911062 @default.
- W3100687547 cites W1992788985 @default.
- W3100687547 cites W1993246016 @default.
- W3100687547 cites W1999246814 @default.
- W3100687547 cites W2001138895 @default.
- W3100687547 cites W2004949601 @default.
- W3100687547 cites W2007443706 @default.
- W3100687547 cites W2011301426 @default.
- W3100687547 cites W2012691401 @default.
- W3100687547 cites W2021945815 @default.
- W3100687547 cites W2029622266 @default.
- W3100687547 cites W2030737301 @default.
- W3100687547 cites W2033486725 @default.
- W3100687547 cites W2034810519 @default.
- W3100687547 cites W2035431642 @default.
- W3100687547 cites W2041604169 @default.
- W3100687547 cites W2041841582 @default.
- W3100687547 cites W2047517451 @default.
- W3100687547 cites W2047995773 @default.
- W3100687547 cites W2053099972 @default.
- W3100687547 cites W2055640540 @default.
- W3100687547 cites W2059815214 @default.
- W3100687547 cites W2061939373 @default.
- W3100687547 cites W2068725239 @default.
- W3100687547 cites W2069891473 @default.
- W3100687547 cites W2083034637 @default.
- W3100687547 cites W2083459181 @default.
- W3100687547 cites W2090082022 @default.
- W3100687547 cites W2091446817 @default.
- W3100687547 cites W2104680982 @default.
- W3100687547 cites W2115754103 @default.
- W3100687547 cites W2119532340 @default.
- W3100687547 cites W2121406789 @default.
- W3100687547 cites W2124532661 @default.
- W3100687547 cites W2126103176 @default.
- W3100687547 cites W2127173959 @default.
- W3100687547 cites W2131975378 @default.
- W3100687547 cites W2132186369 @default.
- W3100687547 cites W2138029281 @default.
- W3100687547 cites W2142589640 @default.
- W3100687547 cites W2143570837 @default.
- W3100687547 cites W2149321497 @default.
- W3100687547 cites W2158442860 @default.
- W3100687547 cites W2159877493 @default.
- W3100687547 cites W2164044997 @default.
- W3100687547 cites W2175863055 @default.
- W3100687547 cites W2195116632 @default.
- W3100687547 cites W2254222333 @default.
- W3100687547 cites W2285557362 @default.
- W3100687547 cites W2341367936 @default.
- W3100687547 cites W2409233362 @default.
- W3100687547 cites W2464613418 @default.
- W3100687547 cites W2467774120 @default.
- W3100687547 cites W2510227453 @default.
- W3100687547 cites W2516823312 @default.
- W3100687547 cites W2528146815 @default.
- W3100687547 cites W2587196404 @default.
- W3100687547 cites W2590853306 @default.
- W3100687547 cites W2594055979 @default.
- W3100687547 cites W2597602507 @default.
- W3100687547 cites W2608956670 @default.
- W3100687547 cites W2612559938 @default.
- W3100687547 cites W2637995764 @default.
- W3100687547 cites W2731442368 @default.
- W3100687547 cites W2738454963 @default.
- W3100687547 cites W2754575924 @default.
- W3100687547 cites W2757579937 @default.
- W3100687547 cites W2759364248 @default.
- W3100687547 cites W2761432840 @default.
- W3100687547 cites W2765607620 @default.
- W3100687547 cites W2768113378 @default.
- W3100687547 cites W2776995364 @default.
- W3100687547 cites W2783164003 @default.
- W3100687547 cites W2783297927 @default.
- W3100687547 cites W2784353078 @default.
- W3100687547 cites W2784685648 @default.
- W3100687547 cites W2792406245 @default.