Research Dark matter doesn't decay, whatever it is

[C C]

https://www.universetoday.com/articles/d...ever-it-is

EXCERPTS: The mystery of Dark Matter endures. Despite sixty years of observation and research, scientists still haven't isolated the particle that accounts for roughly 85% of the Universe's mass. [...] The research was led by Wen Yin ... The paper describing their findings was recently published in Physical Review Letters.

[...] Their results found no decay, which they used to set upper limits on the frequency of these decay events or a lower bound on the lifetime of ALPs - ten to a hundred million times the age of the Universe. This represents the most stringent limit to date for the lifetime of DM, though their results offer hints of "excesses" that present tantalizing prospects for future investigations. The search for the elusive Dark Matter continues, and the field is narrowing! (MORE - details)

[stryder]

https://www.universetoday.com/articles/d...ever-it-is

EXCERPTS: The mystery of Dark Matter endures. Despite sixty years of observation and research, scientists still haven't isolated the particle that accounts for roughly 85% of the Universe's mass. [...] The research was led by Wen Yin ... The paper describing their findings was recently published in Physical Review Letters.

[...] Their results found no decay, which they used to set upper limits on the frequency of these decay events or a lower bound on the lifetime of ALPs - ten to a hundred million times the age of the Universe. This represents the most stringent limit to date for the lifetime of DM, though their results offer hints of "excesses" that present tantalizing prospects for future investigations. The search for the elusive Dark Matter continues, and the field is narrowing! (MORE - details)

I'd consider Dark Matter to be a manifold to aid the universe in expansion. At some point the universe would suffer from the lack of energy to expand further, placing a manifold would aid in stopping it from slowing or collapsing too soon. (in fact the addition of manifolds would aid in increasing the speed for expansion)

If such manifolds decayed too quick, they wouldn't be particularly useful.