SIXTH COSMOS DECLARATION: "Dark" safety net for Universe?

In striving to comprehensively understand Dark Matter, a science team in Europe lead by Torsten Bringmann, may have come across developmental nature of Dark Matter which may illustrate in the complex interactions of the elements that may prove a kind of safety net with tendencies of the universe. Paper is published March 9, 2018.

It involves interaction with Dark Radiation. If this develops as such, it will give weight to future investigations of the universe will less be found with bulkiness of matter and ever so much more fundamental with more refined elements, like radiation, etc. should be examined toward understanding its full nature. Reliance in the past for explaining the universe in terms of presence of bulky matter has not produced a complete picture. Particle tests have continually shown there is much more to detailed comprehension of the cosmos in the more subtle elements. For example, even for matter, Dark Matter is not seen by us but is inferred by detected interaction with other bodies. Some scientists say Dark Radiation may have a regulating function among the dark field spectrum.

The paper is based on treatment of CMB (should it be CMBR?) and LSS data and tensions perceived therein, it may contrast with other related studies. Science is attempting to square the total volume of matter in the universe. It is found there is a tiny but significant difference in tallies. It is said that a presence of Dark Radiation in the dark spectrum could fill in the difference due to decay of Dark Matter. This could cast a reflection on the Standard Model of Cosmology, say some scientists.

Certain situation of decay of Dark Matter into Dark Radiation of relativistic decay particles may reveal an interesting development. It could be found that Dark Matter decays and that a small percentage is not traced, hence considered invisible or Dark Radiation which cannot interact electromagnetically. This possibility encourages others to search for evidence of more Dark Matter which has passed into the invisible range that has not been readily before detected. This could help explain how the universe is expanding 5-9% faster than before believed, as told by an Adam Reiss team in 2016. Has since been revised down to about 2.4% also has been worked up to indicate conditions 100,000 years ago lead to ignition of an accelerating, repulsive energy.

This topic has been broached by other scientists in earlier years, e.g. Robert Scherrer and Justin Menestrina, 2011; Marc Kamionkowski, Sean M. Carroll in Dec. 2008.