Antimatter in Cosmic Rays Probes Dark Matter
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dark matter particle annihilationSpace
•Cosmic rays have surprising amounts of antimatter. Is dark matter responsible?
68% Informative
An overabundance of antimatter in cosmic rays could reveal the secrets of dark matter, a new study suggests.
Dark matter makes up 85% of the matter in the cosmos but is effectively invisible because it doesn't interact with light.
The study could clear the leading dark matter suspect, WIMPs, shoft for "weakly interacting massive particles" The team's research could be bad news for the most widely supported candidates for dark matter.
WIMPs must produce much less amount of antihelium-4 than dark matter, scientists say.
The view of WIMP as "miracle particles" meeting all the requirements of dark matter has led to the effective abandonment of many other particle models.
Some of these alternatives may now be back on the table, as may non-particle explanations.
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