The ALPHA Collaboration published in Nature the first observation of the 1S-2S transition in trapped antihydrogen. This breakthrough result was enabled by, among other advances, improved understanding and control of nonneutral plasmas. Berkeley Professors Joel Fajans and Jonathan Wurtele, and graduate student Celeste Carruth are collaboration members, the Technical Coordinator of ALPHA is Prof. Will Bertsche (Manchester), who received his Ph.D. from Berkeley in Prof. Fajans laboratory, and postdoc Chukman So (Calgary) is a Ph.D. from Prof. Wurtele's group. Graduate student Celeste Carruth's thesis, with Prof. Fajans, will focus on the plasma techniques employed to synthesize antihydrogen. The success of ALPHA this year lays the technical basis for much more precise measurements in the near future.
Read article in Nature.