Axions and photinos are examples of:
A) cold dark matter.
B) hot dark matter.
C) neutrinos.
D) normal matter.

Question

Quizplus · Accepted Answer

Axions and photinos are hypothetical particles that are predicted to exist in some models of particle physics and are considered candidates for cold dark matter. Hot dark matter refers to particles that move at relativistic speeds and would not form structures like galaxies, whereas neutrinos are a type of hot dark matter. Normal matter, on the other hand, interacts electromagnetically and forms stars and galaxies.

Axions and Photinos Are Examples Of