Unknown hypernucleus emitted from the<i>S</i>-substitutional<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">C</mml:mi></mml:mrow><mml:mprescripts/><mml:mrow><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal"/></mml:mrow><mml:mrow><mml:mn>1</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mrow><mml:msubsup><mml:mrow><mml:mi mathvariant="normal"/></mml:mrow><mml:mrow><mml:mi mathvariant="normal">Λ</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msubsup></mml:mrow></mml:mrow><mml:mrow/><mml:mrow/><mml:mrow/></mml:mmultiscripts></mml:mrow></mml:math>excited state
H. BandōDivision of Mathematical Physics, Fukui University, Fukui, JapanT. YamadaDivision of Mathematical Physics, Fukui University, Fukui, JapanJ. ŽofkaDivision of Mathematical Physics, Fukui University, Fukui, Japan
ABI
Abstract
The ${S}^{2}$ factors of $^{3}\mathrm{He}$${+}_{\mathrm{\ensuremath{\Lambda}}}^{9}$Be and \ensuremath{\alpha}${+\mathrm{}}_{\ensuremath{\Lambda}}^{8}$Be decays from the S-substitutional state of $_{{\mathrm{}}^{1}{\mathrm{}}_{\mathrm{\ensuremath{\Lambda}}}^{2}}\mathrm{C}$ are evaluated by assuming ${\mathrm{SU}}_{3}$ wave functions. The unknown hypernucleus, the lifetime of which was measured, is identified as $_{\mathrm{\ensuremath{\Lambda}}}^{9}\mathrm{Be}$.
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