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The ‘Little’ Computer Cluster That Could

…ough access to the PDSF facility.” PDSF’s fast processing of data from the Daya Bay nuclear reactor-based experiment was also integral in precise measurements of neutrino properties. The cluster was a trendsetter for a so-called condo model in shared computing. This model allowed collaborations to buy a share of computing power and dedicated storage space that was customized for their own needs, and a participant’s allocated computer processors on…

American Academy of Arts and Sciences Elects Four Berkeley Lab Scientists

…tudying neutrino oscillations using electron antineutrinos produced by the Daya Bay nuclear power complex in China. To resolve other longstanding questions about neutrinos, he is participating in the upcoming Deep Underground Neutrino Experiment (DUNE) experiment, which will use a massive detector facility built deep underground in the Sanford Underground Research Facility, South Dakota, to observe intense (anti)neutrino beams sent from Fermi Nati…

Setting a ‘Gold Standard’ for Ultrasensitive Particle Detectors

…experiments, including the Nobel Prize-winning SNO experiment, KATRIN, the Daya Bay Reactor Neutrino Experiment, LUX, LZ, Majorana, CUORE, DM-Ice, LBNE (the precursor to LBNF/DUNE), Double Chooz, KamLAND. “I don’t think we would have achieved what we did without Al’s work,” said Poon. “He set the gold standard for low-background counting.” Looking forward Sanford Lab benefits tremendously from the impacts of Smith and his team. His scrupulous reco…

Early Career Spotlight: Zach Marshall Searches for Supersymmetry

…from inundating a supercomputer with jobs that demand a single resource, such as data input, data output, or memory, for example — and avoid crashing outside servers, a win-win for everyone, whether they’re working on particle physics experiments at CERN’s ATLAS or ALICE, neutrino experiments at Daya Bay, or dark matter experiments at the LUX-ZEPLIN (LZ) detector. “Before winning this award, we were worried that we wouldn’t have the resources to…

New Measurements Suggest ‘Antineutrino Anomaly’ Fueled by Modeling Error

…ectable form known as “sterile” neutrinos. But the latest results from the Daya Bay reactor neutrino experiment, located at a nuclear power complex in China, suggest a simpler explanation—a miscalculation in the predicted rate of antineutrino production for one particular component of nuclear reactor fuel. Antineutrinos carry away about 5 percent of the energy released as the uranium and plutonium atoms that fuel the reactor split, or “fission.” T…

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

…exotic type of neutrino that has not been detected before. Members of the Daya Bay Collaboration published the results, based on an analysis of more than 300,000 nuclear reactor-produced antineutrinos collected over 217 days, Feb. 12 in the journal Physical Review Letters. The collaboration measured the energy of the reactor antineutrinos to an unprecedented precision, better than 1 percent, over a broad energy range. The collaboration includes m…

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

…neutrino Detector (KamLAND), and the Daya Bay Reactor Neutrino Experiment (Daya Bay) were among five neutrino experiments awarded the 2016 Breakthrough Prize in Fundamental Physics. All three were made possible by essential contributions from scientists and engineers at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab). The other honored experiments were Super-Kamiokande (Super-K) and KEK-to-Kamioka/Tokai-to-Kami…

Best Precision Yet for Neutrino Measurements at Daya Bay

…dy 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. The latest findings involve measurements that track the way…

Hide & Seek: Sterile Neutrinos Remain Elusive

…d State University, University of Wisconsin-Madison, College of William and Mary, Xi’an Jiao Tong University, Yale University, and Sun Yat-Sen (Zhongshan) University. A complete list of funding agencies for the experiment can be found in the published paper. For more information, visit http://dayabay.ihep.ac.cn/ And these Related Links Scientific paper: “Search for a Light Sterile Neutrino at Daya Bay” Previous releases: New Results from Daya Bay:…

Berkeley's Kam-Biu Luk Wins Panofsky Prize for Daya Bay Experiment

…ang Wang of China’s Institute of High Energy Physics for their work on the Daya Bay Reactor Neutrino Experiment. The citation reads, “For their leadership of the Daya Bay experiment, which produced the first definitive measurement of θ13 angle of the neutrino mixing matrix.” The on-going Daya Bay Experiment in the south of China is a multinational collaboration for the study of neutrinos, the ghostlike particles produced by our sun and other stars…