410 citations · 667 across the 11 of their papers we have counts for
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Proposed method for laser spectroscopy of pionic helium atoms to determine the charged-pion mass
Masaki Hori, Anna Sótér, Vladimir I. Korobov
Metastable pionic helium () is a three-body atom composed of a helium nucleus, an electron occupying the ground state, and a negatively charged pion in a Ry…
Physics at CERN's Antiproton Decelerator
M. Hori, J. Walz
The Antiproton Decelerator of CERN began operation in 1999 to serve experiments for studies of CPT invariance by precision laser and microwave spectroscopy of antihydrogen ($\bar{\…
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…
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…
First observation of two hyperfine transitions in antiprotonic He-3
S. Friedreich, D. Barna, F. Caspers +11
We report on the first experimental results for microwave spectroscopy of the hyperfine structure of antiprotonic He-3. Due to the helium nuclear spin, antiprotonic He-3 has a more…
Calculation of transition probabilities and ac Stark shifts in two-photon laser transitions of antiprotonic helium
Masaki Hori, Vladimir I. Korobov
Numerical ab initio variational calculations of the transition probabilities and ac Stark shifts in two-photon transitions of antiprotonic helium atoms driven by two counter-propag…