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Most Precise Measurement of Energy Range for Particles Produced by Nuclear Reactors Reveals Surprises

An international team that includes researchers from Berkeley Lab has captured the most precise—and puzzling—energy measurements yet of ghostly particles called reactor antineutrinos produced at a nuclear power complex in China.

New Results from World’s Most Sensitive Dark Matter Detector

A new set of calibration techniques employed by LUX scientists has again dramatically improved the detector’s sensitivity.

2016 Breakthrough Prize in Fundamental Physics Goes to Five Neutrino Experiments, Three Made Possible by Berkeley Lab

On November 8, Silicon Valley’s ritzy, glitzy 2016 Breakthrough Prizes honored five neutrino experiments with $3 million prizes in Fundamental Physics. Three of the five, SNO, KamLAND, and Daya Bay, were made possible by Berkeley Lab scientists and engineers.

2015 Nobel Prize in Physics Has Berkeley Lab Roots

Berkeley Lab scientists and engineers played important roles in the design and construction of SNO – the Sudbury Neutrino Observatory – as well as subsequent data analysis that contributed to the 2015 Nobel Prize in Physics awarded to Canada’s Arthur McDonald.

Best Precision Yet for Neutrino Measurements at Daya Bay

In the Daya Bay region of China a research project is underway to study ghostlike, elusive particles called neutrinos. Today, the international Daya Bay Collaboration announces new findings on the measurements of neutrinos, paving the way forward for further neutrino research, and confirming that the Daya Bay neutrino experiment, significant as the first equal partnership between the U.S. and China in a major physics project, continues to be one to watch.

Cosmic Mystery Deepens with Discovery of New Ultra-High-Energy Neutrino

Evidence of a fourth ultra-high energy neutrino—the highest-energy neutrino yet—has been detected by the South Pole-based IceCube experiment.

Notes from the Particle Physics Underground

The town of Lead South Dakota has a hidden gem: an enormous, underground mine that’s been retrofitted to accommodate large-scale particle physics experiments. These slideshows and videos give a sense of what it’s like to descend 4,850 feet below the surface and work on projects that could shine light on fundamental truths about the universe.

New Visitor Center in South Dakota Highlights Underground Science

The Sanford Lab Homestake Visitor Center, a facility that highlights Homestake Mine’s gold and silver past and particle physics future, held its grand opening ceremony on June 30.

For Ultra-cold Neutrino Experiment, a Successful Demonstration

An international team of nuclear physicists announced the first scientific results from the Cryogenic Underground Observatory for Rare Events (CUORE) experiment. CUORE is designed to confirm the existence of the Majorana neutrino, which scientists believe could hold the key to why there is an abundance of matter over antimatter.

Creating the Coldest Cubic Meter in the Universe

As part of an international collaboration, Berkeley Lab scientists have helped create the coldest cubic meter in the universe. The cooled chamber—roughly the size of a vending machine—was chilled to 6 milliKelvin or -273.144 degrees Celsius in preparation for a forthcoming experiment that will study neutrinos, ghostlike particles that could hold the key to the existence of matter around us.