Neutrino Hunters Go Nuclear to Tackle Antimatter Deficit: A team in China and others around the globe hope an obscure properly of neutrinos may answer the question of why the universe isn't full of antimatter

摘要

HONG KONG—It's nearly 1:30 a.m. when three unmarked cars ease into a deserted tunnel linking Hong Kong's central business district and Aberdeen, a residential community in the island's southwest corner. About halfway through the mountain passage, which is closed for maintenance, the cavalcade rolls to a halt beside a cavernous service hall. A young man leaps out and unlocks a steel door, and his colleagues swarm into a tiny, humid room hewn from granite. After a couple of hours of fiddling with electronics and scintillation counters, the group huddles around a computer. "We have a signal," says a young physicist, beaming with pride.