Literature DB >> 12190401

Primary populations of metastable antiprotonic (4)He and (3)He atoms.

M Hori1, J Eades, R S Hayano, T Ishikawa, J Sakaguchi, T Tasaki, E Widmann, H Yamaguchi, H A Torii, B Juhász, D Horváth, T Yamazaki.   

Abstract

Initial distributions of metastable antiprotonic (4)He and (3)He atoms over principal (n) and angular momentum (l) quantum numbers have been deduced using laser spectroscopy experiments. The regions n = 37-40 and n = 35-38 in the two atoms account for almost all of the observed fractions [(3.0 +/- 0.1)% and (2.4 +/- 0.1)%] of antiprotons captured into metastable states.

Entities:  

Year:  2002        PMID: 12190401     DOI: 10.1103/PhysRevLett.89.093401

Source DB:  PubMed          Journal:  Phys Rev Lett        ISSN: 0031-9007            Impact factor:   9.161


  3 in total

1.  First observation of two hyperfine transitions in antiprotonic He.

Authors:  S Friedreich; D Barna; F Caspers; A Dax; R S Hayano; M Hori; D Horváth; B Juhász; T Kobayashi; O Massiczek; A Sótér; K Todoroki; E Widmann; J Zmeskal
Journal:  Phys Lett B       Date:  2011-05-30       Impact factor: 4.771

2.  High-resolution laser resonances of antiprotonic helium in superfluid 4He.

Authors:  Anna Sótér; Hossein Aghai-Khozani; Dániel Barna; Andreas Dax; Luca Venturelli; Masaki Hori
Journal:  Nature       Date:  2022-03-16       Impact factor: 69.504

3.  Laser Spectroscopy Measurements of Metastable Pionic Helium Atoms at Paul Scherrer Institute.

Authors:  M Hori; H Aghai-Khozani; A Sótér; A Dax; D Barna
Journal:  Few Body Syst       Date:  2021-07-29       Impact factor: 1.362

  3 in total

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