Antiprotonic helium

T Yamazaki, N Morita, RS Hayano, E Widmann… - Physics Reports, 2002 - Elsevier
Antiprotonic helium, a neutral three-body system p ̄ e− He 2+(= p ̄ He+), produced when
antiprotons (p ̄) are captured in various phases of helium, comprises a series of long-lived …

Gaussian expansion method for few-body systems

E Hiyama, Y Kino, M Kamimura - Progress in Particle and Nuclear Physics, 2003 - Elsevier
We review our method of calculation, Gaussian Expansion Method (GEM), for bound and
scattering states of few-body systems. The method was proposed in 1988 and has been …

Study of various few-body systems using Gaussian expansion method (GEM)

E Hiyama, M Kamimura - Frontiers of Physics, 2018 - Springer
We review our calculation method, Gaussian expansion method (GEM), to solve accurately
the Schrödinger equations for bound, resonant and scattering states of few-body systems …

Antiprotonic helium and CPT invariance

RS Hayano, M Hori, D Horváth… - Reports on Progress in …, 2007 - iopscience.iop.org
We review recent progress in the laser and microwave spectroscopy of antiprotonic helium
atoms carried out at CERN's Antiproton Decelerator facility (AD). Laser transitions were here …

Sub-ppm laser spectroscopy of antiprotonic helium and a CPT-violation limit on the antiprotonic charge and mass

M Hori, J Eades, RS Hayano, T Ishikawa, J Sakaguchi… - Physical review …, 2001 - APS
Six laser-resonant transitions have been detected in metastable antiprotonic helium atoms
produced at the CERN Antiproton Decelerator. They include UV transitions from the last …

Analog Cherenkov detectors used in laser spectroscopy experiments on antiprotonic helium

M Hori, K Yamashita, RS Hayano… - Nuclear Instruments and …, 2003 - Elsevier
We describe some acrylic Cherenkov detectors read out by gateable fine-mesh
photomultipliers, used in laser spectroscopy experiments of metastable antiprotonic helium …

Variational expansion for antiprotonic helium atoms

VI Korobov, D Bakalov, HJ Monkhorst - Physical Review A, 1999 - APS
A very accurate variational expansion is suggested for calculation of nonrelativistic energies
of the metastable antiprotonic helium atoms He+ p. This expansion reflects the dual atomic …

Antiproton magnetic moment determined from the HFS of p¯ He+

T Pask, D Barna, A Dax, RS Hayano, M Hori, D Horváth… - Physics Letters B, 2009 - Elsevier
We report a determination of the antiproton magnetic moment, measured in a three-body
system, independent of previous experiments. We present results from a systematic study of …

Calculation of transitions between metastable states of antiprotonic helium including relativistic and radiative corrections of order

VI Korobov - Physical Review A—Atomic, Molecular, and Optical …, 2008 - APS
Precise numerical calculation of transition intervals between metastable states in the
antiprotonic helium atom is performed. Theoretical consideration includes a complete …

Metastable states in the antiprotonic helium atom decaying via Auger transitions

VI Korobov - Physical Review A, 2003 - APS
In the present paper, we perform a systematic calculation of the complex resonance energy
for metastable states in the antiprotonic helium atoms, which decay predominantly via Auger …