Only a few direct measurements have been performed so far to test this conjecture.
This high-precision measurement was achieved by comparing the cyclotron frequencies of antiprotons and negatively charged hydrogen ions in a Penning trap.
Claude Amsler looks at some of the studies over the years at CERN.
ALPHAfound it to be compatible with zero to eight decimal places.
A German/Japanese collaboration working at the University of Mainz has performed the first direct high-precision measurement of the magnetic moment of the proton – which is by far the most accurate ...
The ASACUSA collaboration reports the unambiguous detection of antihydrogen atoms 2.7 m downstream from their production.
A report from a meeting in Bern on the interactions of antimatter with gravity.
The ALPHA collaboration at CERN has made the first direct analysis of how antimatter is affected by gravity. The ALPHA experiment was the first to trap atoms of antihydrogen, held in place with a stro...
Three experiments converge in their quest to measure γ.
The ALPHA collaboration has reported the first-ever resonant interaction with the antihydrogen atom.