Analysis of the lifetimes and fractions of antiprotons trapped in metastable states of antiprotonic helium

Journal Article · Thu Dec 01 04:00:00 EST 1994 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.50.5346· OSTI ID:6804172

Shimamura, I ^[1]; Kimura, M ^[2]

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1. Institute of Phyical and Chemical Research (RIKEN), Wako, Saitama 351-01 (Japan)
2. Argonne National Laboratory, Argonne, Illinois 60439 (United States) Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-01 (Japan)

A recent paper by T. Yamazaki and K. Ohtsuki [Phys. Rev. A 45, 7782 (1992)] discusses properties of antiprotonic helium (He[sup 2+][ital [bar p]e][sup [minus]]) formed in collisions of antiprotons ([ital [bar p]]) with helium. Here we point out problems with approximations and assumptions used in deriving the results of that paper.

• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6804172
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 50:6; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664500* -- Special Atoms & Molecules-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ANTIBARYONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
ANTIPROTONS
ATOMS
BARYONS
ELECTRONIC STRUCTURE
ELEMENTARY PARTICLES
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FERMIONS
FLUIDS
GASES
HADRONIC ATOMS
HADRONS
HELIUM
LIFETIME
MATTER
METASTABLE STATES
NONMETALS
NUCLEI
NUCLEONS
RARE GASES
YIELDS