Physicists Start Detecting Signs of Neutrinos At Large Hadron Collider


    “The international Forward Search Experiment team, led by physicists at the University of California, Irvine, has achieved the first-ever detection of neutrino candidates produced by the Large Hadron Collider at the CERN facility near Geneva, Switzerland,” reports Long-time Slashdot reader fahrbot-bot shared their report: In a paper published Friday in the journal Physical Review D, the researchers describe how they observed six neutrino interactions during a pilot run of a compact emulsion detector installed at the LHC in 2018. “Prior to this project, no sign of neutrinos has ever been seen at a particle collider,” said co-author Jonathan Feng, UCI Distinguished Professor of physics & astronomy and co-leader of the FASER Collaboration. “This significant breakthrough is a step toward developing a deeper understanding of these elusive particles and the role they play in the universe.” He said the discovery made during the pilot gave his team two crucial pieces of information. “First, it verified that the position [480 meters] forward of the ATLAS interaction point at the LHC is the right location for detecting collider neutrinos,” Feng said. “Second, our efforts demonstrated the effectiveness of using an emulsion detector to observe these kinds of neutrino interactions….” “Given the power of our new detector and its prime location at CERN, we expect to be able to record more than 10,000 neutrino interactions in the next run of the LHC, beginning in 2022,” said co-author David Casper, FASER project co-leader and associate professor of physics & astronomy at UCI. “We will detect the highest-energy neutrinos that have ever been produced from a human-made source.” The article also points out that in future experiments the researchers hope to explore dark matter — and how it interacts with normal atoms. Read more of this story at Slashdot.


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