Precision measurement of antimatter made

By Ashley Yeager, 09:44 AM June 4, 2014

The charge of antihydrogen atoms is neutral, at least out to eight decimal places, a new measurement made at CERN shows. Because hydrogen atoms have an electrically neutral charge and the charge of antihydrogen atoms is expected to match, the result, published June 3 in Nature Communications, isn't surprising.

However, the new measurement is roughly a million times more precise than previous estimates. Continuing to make such precise measurements and possibly finding slight differences between...

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