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Working at the forefront of particle physics, SLAC scientists use powerful particle accelerators to create and study nature’s fundamental building blocks and forces, build sensitive detectors to search for new particles and develop theories that explain and guide experiments. SLAC's particle physicists want to understand our universe – from its smallest constituents to its largest structures.

Related links:
Physics of the universe
Elementary particle physics

Particles collide in this illustration

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Last year, a monster magnet set out from Brookhaven National Lab on an epic trek by land and sea to Fermilab, where it will...

Photo – The Muon g-2 Detector Group
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The Higgs boson could be the tool that leads scientists to the next big discovery.

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DOE-funded Program Benefits Companies, the Lab and Society

A copper acceleration cavity with an extremely thin coating of tungsten.
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Photon science, a spin-off of particle physics, has returned to its roots for help developing better, faster detectors.

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A determined volunteer gives an old detector new life as the centerpiece of a cosmic ray exhibit.

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Scientists from two experiments have banded together to create a single comprehensive record of their work for scientific posterity.

Man at podium with a big book
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Detecting new physics isn’t quite like detecting cat videos—yet.

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Two years after the groundbreaking discovery of the Higgs boson, physicists are still hard at work.

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SLAC scientist Michael Kelsey sees connections between the communities of physicists and do-it-yourselfers.

Michael Kelsey
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The 30-ton MicroBooNE detector, the cornerstone of Fermilab’s short-baseline neutrino program, will see neutrinos this year.

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A new result from the Large Hadron Collider strengthens the case that the Higgs interacts with both types of particles in the Standard Model.

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A sensor design first envisioned in 1995 by physicists and engineers at SLAC plays a starring role in a major ATLAS detector upgrade at...

Photo - Several 3-D sensors etched into a silicon wafer