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Particle physicists chasing ghosts

Wispy neutrinos could explain why matter dominates the universe

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1:01pm, August 12, 2011

PROVIDENCE, R.I. — Two experiments on different continents have found hints that particles called neutrinos can shape-shift in an unexpected way.

This behavior may be the key to understanding why these particles are so weird, says neutrino physicist Jennifer Raaf of the Fermi National Accelerator Laboratory in Batavia, Ill., the nation’s largest particle physics lab. Raaf presented an overview of recent neutrino findings August 9 at a meeting of the American Physical Society’s Division of Particles and Fields.

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