ALPHA collaboration reports first measurements of certain quantum effects in antimatter
(PHYSorg.com Physics)

The ALPHA collaboration at CERN has reported the first measurements of certain quantum effects in the energy structure of antihydrogen, the antimatter counterpart of hydrogen. These quantum effects are known to exist in matter, and studying them could reveal as yet unobserved differences between the behavior of matter and antimatter. The results, described in a paper published today in the journal Nature, show that these first measurements are consistent with theoretical predictions of the effects in `normal` hydrogen, and pave the way for more precise measurements of these and other fundamental quantities.