These clocks, which measure time by using an ultra-stable laser to monitor the resonant frequency of atoms, are now precise enough that if they ran for the age of the universe, they would lose less than one second.
In the 11 years since its discovery at the Large Hadron Collider, the Higgs boson has become a central avenue for shedding light on the fundamental structure of the universe.
The ATLAS collaboration has begun to publish likelihood functions, information that will allow researchers to better understand and use their experiment’s data in future analyses.
Once the most popular framework for physics beyond the Standard Model, supersymmetry is facing a reckoning—but many researchers are not giving up on it yet.
Until recently, scientists had never detected black holes in the “mass gap”—now, particle physicists are exploring ideas beyond the Standard Model that could explain them.