Observation of particle unstable in pion absorption in
作者： U. Sennhauser , L. Felawka , T. Kozlowski , H.K. Walter , F.W. Schlepuetz
DOI: 10.1016/0370-2693(81)90071-X
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摘要: Abstract A particle unstable state of 4H has been identified in the reaction π − + 7 Li → 4 H+t , H t +π by observing two emitted tritons. resonance energy EΓ=(2.7±0.6) MeV and a reduced width γ2=(2.3±0.6) were deduced, agreement with parameters ground-state level (Jπ=2−) found p-wave n-t-scattering. The yield per stopped pion is (5.6±1.8)×10−4. Previous measurements absorption are disagreement our results.
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