China races to unlock one of the biggest mysteries in particle physics

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China races to unlock one of the biggest mysteries in particle physics
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Andrew Paul is Popular Science's staff writer covering tech news. Previously, he was a regular contributor to The A.V. Club and Input, and has had recent work featured by Rolling Stone, Fangoria, GQ, Slate, NBC, as well as McSweeney's Internet Tendency. He lives outside Indianapolis.

ArticleBody:China hopes a giant laboratory 2,300 feet underground is key to beating the US at discovering the secrets of the universe’s most mysterious particles–neutrinos. Slated for completion next year, after over a decade of construction, the roughly $311 million Jiangmen Underground Neutrino Observatory relies on a nearly 115-foot-wide stainless steel and acrylic spherical machine designed to help measure incomprehensibly small subatomic units that move almost at the speed of light.

project manager and the director of China’s Institute of High Energy Physics, told the AFP during a facility tour earlier this month. Experts determined years ago that neutrinos appear to occupy one of three mass states—but their weights from the heaviest to lightest remain unclear. If researchers can figure those out, the new information may help build a more complete standard model of particle physics, as well as expand our knowledge of the inner workings of planets, stars, and supernovas.

’s potential mass hierarchy findings may even force physicists to reconsider established scientific facts, particularly when it comes to quantum mechanics. “If it turns out that shows our understanding is wrong, then that would be a revolution,” Patrick Huber, director of American University Virginia Tech’s Center for Neutrino Physics, said on October 17th. Once activated, researchers intend to focus

on neutrinos emitted by a pair of nuclear power plants located about 33 miles away on either side of the subterranean facility. But cracking neutrino mass hierarchy isn’t as simple as measuring their weights—experts believe it will take about six years’ worth of experimentation and analysis to finally figure out the answers to the mass hierarchy problem.

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