Particle physics

How can we figure out when the universe began?

Why are there three almost identical copies of each particle of matter?

Observations of this kind could lead scientists to the source of ultra-high-energy cosmic rays.

Physicists discovered one type of Higgs boson in 2012. Now they’re looking for more.

Our universe could be just one small piece of a bubbling multiverse.

A researcher interviewed SLAC and Stanford administrators, scientists and Nobel laureates and sifted through archival materials to better understand the drivers for change in SLAC’s science mission.

Explore the elementary particles that make up our universe.

The  ATLAS and CMS experiments at the LHC see something mysterious, but it’s too soon to pop the Champagne.

What are WIMPs, and what makes them such popular dark matter candidates? 

Pentaquarks are no longer just a theory.

Scientists are ready to handle the increased data of the current run of the Large Hadron Collider.

When it comes to studying particles that zip through matter as though it weren’t even there, you use every method you can think of.