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physics.atom-ph2013★ 410 cited
Two-photon laser spectroscopy of antiprotonic helium and the antiproton-to-electron mass ratio
Masaki Hori, Anna Sótér, Daniel Barna +9
Physical laws are believed to be invariant under the combined transformations of charge, parity and time reversal (CPT symmetry). This implies that an antimatter particle has exact…
physics.atom-ph2013★ 11 cited
Microwave spectroscopic study of the hyperfine structure of antiprotonic helium-3
Susanne Friedreich, Daniel Barna, Fritz Caspers +11
In this work we describe the latest results for the measurements of the hyperfine structure of antiprotonic helium-3. Two out of four measurable super-super-hyperfine SSHF transiti…