Further investigation of the γ-transitions in Λ4H and Λ4 hypernuclei |
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| Authors: | M. Bedjidian E. Descroix J.Y. Grossiord A. Guichard M. Gusakow M. Jacquin M.J. Kudła H. Piekarz J. Piekarz J.R. Pizzi J. Pniewski |
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| Affiliation: | 1. CERN, Geneva, Switzerland;2. Institut de Physique Nucléaire, Université Claude Bernard de Lyon et Institut National de Physique Nucléaire et de Physique des Particules, Lyon, France;3. Institute of Experimental Physics, University of Warsaw and Institute of Nuclear Research, Warsaw, Poland |
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| Abstract: | The γ-spectra induced by stopped K? mesons in 6Li and 7Li targets in coincidence with the accompanying charged pions and π0 mesons. The γ-line at (1.04 ± 0.04) MeV observed with charged pions was identified as a γ-transition in Λ4H, whereas the γ-line at (1.15 ± 0.04)_MeV observed with π0 mesons was ascribed to a γ-transition in Λ4He. Using these new values for the excitation energies of the 1+ levels of Λ4H and Λ4He hypernuclei, the phenomenological ΛN potential for the s-state interaction was recalculated. |
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