Hyperfine Interactions

, Volume 84, Issue 1, pp 569–574 | Cite as

Measurements of transfer process in pion capture by a series of alcohols

  • Atsushi Shinohara
  • Toshiharu Muroyama
  • Junichirou Shintai
  • Eugene Taniguchi
  • Tadashi Saito
  • Taichi Miura
  • Nobutsugu Imanishi
  • Yoshio Yoshimura
  • Michiaki Furukawa
Article

Abstract

The transfer of negative pions captured by hydrogen to heavier atoms has been investigated in a series of alcohols by measuring both 2γ rays from π0 decay and pionic X rays. Capture rates for the pionic hydrogen of different chemical states in the molecule were determined from a comparison between the data for the ordinary compound and the deuterated one. The external transfer in the condensed phase was revealed by the dependence of the capture rate of hydrogen on the number of carbon atoms in the alkyl group. The influence of the chemical structure on the transfer process is discussed with respect to the large difference between the relative transfer rates,ΛC=1.5±0.2 andΛO = 4.5±0.4, corresponding to carbon and oxygen, respectively.

Keywords

Hydrogen Alcohol Thin Film Carbon Atom Alkyl Group 

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Copyright information

© J.C. Baltzer AG, Science Publishers 1994

Authors and Affiliations

  • Atsushi Shinohara
    • 1
  • Toshiharu Muroyama
    • 1
  • Junichirou Shintai
    • 1
  • Eugene Taniguchi
    • 1
  • Tadashi Saito
    • 2
  • Taichi Miura
    • 3
  • Nobutsugu Imanishi
    • 4
  • Yoshio Yoshimura
    • 3
  • Michiaki Furukawa
    • 1
  1. 1.Department of Chemistry, Faculty of ScienceNagoya UniversityNagoyaJapan
  2. 2.Department of Chemistry, Faculty of ScienceOsaka UniversityOsakaJapan
  3. 3.The National Laboratory for High Energy PhysicsIbarakiJapan
  4. 4.Department of Nuclear Engineering, Faculty of EngineeringKyoto UniversityKyotoJapan

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