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Researchers say there are three possible explanations for the anomalous data. One is mundane. Two would revolutionize physics.
In a new paper, physicists argue that hypothetical particles called axions could explain why the universe isn’t empty.
Physicists have long searched for hypothesized dark matter particles called WIMPs. Now, focus may be shifting to the axion — an ultra-lightweight particle whose existence would solve two mysteries at once.
A new theory proposes that the quantum properties of an object extend into an “atmosphere” that surrounds the material.
The two physicists who introduced Peccei-Quinn symmetry came up with their idea on and around Stanford University’s campus 40 years ago.
The theoretical particle physicist Helen Quinn has blazed a singular path from the early days of the Standard Model to the latest overhaul of science education in the United States.
The physicist Asimina Arvanitaki is thinking up ways to search gravitational wave data for evidence of dark matter particles orbiting black holes.
The irreversibility of time may be a clue as to what makes up the universe’s dark matter.
Three physicists have proposed a new solution to one of the deepest mysteries in particle physics: why the Higgs boson has such a tiny mass.