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Spectroscopy of 7Li in stopped pion absorption reactions

  • Yu. B. Gurov
  • L. Yu. Korotkova
  • S. V. Lapushkin
  • R. V. Pritula
  • V. G. Sandukovsky
  • B. A. Chernyshev
  • T. D. Schurenkova
Proceedings of the LXIII International Conference “Nuclei 2013: Fundamental Problems of Nuclear Physics and Atomic Power Engineering” (LXIII International Conference on Nuclear Spectroscopy and the Structure of Atomic Nuclei)
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Abstract

The structure of excited levels in the 7Li isotope is studied via inclusive and correlation measurements in the stopped π meson absorption reactions 10B(π, t)X and 12C(π, dt)X, respectively. The experiment is conducted using a low-energy pion beam at the LAMPF meson factory. Analysis of the missing mass spectra reveals 7Li states with the resonance parameters (E x , Γ) (4.7, 0.1), (6.6, 0.9), (7.3, 0.1), (9.1, 2.8), and (9.6, 0.4) MeV. A highly excited state with E x ≈ 11.2 MeV (i.e., an isobar analog of 7He) is observed in the 10B(π,t)X reaction. An excited state with E x = 10.3 ± 0.1 MeV and γ = 1.8 ± 0.4 Mev is observed for the first time in the 12C(π,dt)X reaction.

Keywords

Excited State Kalinin Resonance Parameter Absorption Reaction Inclusive Measurement 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Allerton Press, Inc. 2014

Authors and Affiliations

  • Yu. B. Gurov
    • 1
  • L. Yu. Korotkova
    • 1
  • S. V. Lapushkin
    • 1
  • R. V. Pritula
    • 1
  • V. G. Sandukovsky
    • 1
  • B. A. Chernyshev
    • 1
  • T. D. Schurenkova
    • 1
  1. 1.National Nuclear Research University (MEPhI)MoscowRussia

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