I recently read a few things that implied that there is antimatter that we know of (have created?) that exists as atoms - which I guess means positrons and antiprotons bound together, at least.

Is this actually "real"? I know that we've created antimatter particles (in parrticle-antiparticle pairs that appear from collisions)... I'd always assumed this was as far as we could go.

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    $\begingroup$ Is your question whether antimatter atoms have been observed, or whether all antimatter produced is in this form? Please rephrase your question (and in particular the title) to clarify. $\endgroup$ – Emilio Pisanty Oct 10 '14 at 12:34
  • $\begingroup$ The former. "Have any antimatter atoms been observed (I know that antimatter particles have been observed)?" $\endgroup$ – GreenAsJade Oct 10 '14 at 22:44
  • $\begingroup$ One of the guys I work with was among the people to get an award for trapping an anti-hydrogen atom for 15 minutes (only 15 minutes because they didn't see a point in keeping it longer) $\endgroup$ – Jim Oct 16 '14 at 13:16

According to http://en.wikipedia.org/wiki/Antihydrogen, anti hydrogen has been produced - so the answer to your question is "yes, it is real".


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