New model to predict dark matter
Q. What percentage of the universe is dark matter?- Published on 16 Mar 16a. 7
b. 17
c. 27
d. 37
ANSWER: 27
Researchers have presented a new model for what dark matter might be. 27 percent of the universe is dark matter. Only five percent is the matter of which all known materials consist: from the smallest ant to the largest galaxy. For decades, physicists have been working on the theory that dark matter is light and therefore interacts weakly with ordinary matter thereby producing particles as colliders. Theory's dark particles are called weakly-interacting massive particles (WIMPs), and they are theorised to have been created in an inconceivably large number shortly after the birth of the universe 13.7 billion years ago. Sloth and his colleagues call their version of such a heavy particle a PIDM (Planckian Interacting Dark Matter) particle. In their new model, they calculated how the required number of PIDM particles could have been created in the early universe.
