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Basic<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mover accent="true"><mml:mrow><mml:mi>K</mml:mi></mml:mrow><mml:mrow><mml:mo>¯</mml:mo></mml:mrow></mml:mover></mml:mrow></mml:math>nuclear cluster,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mi>K</mml:mi><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup><mml:mi mathvariant="italic">pp</mml:mi></mml:mrow></mml:math>, and its enhanced formation in …
We have studied the structure of ${K}^{\ensuremath{-}}\mathit{pp}$ nuclear cluster comprehensively by solving this three-body system exactly in a variational method starting from the Ansatz that the $\ensuremath{\Lambda}(1405)$ resonance $(\ensuremath{\equiv}{\ensuremath{\Lambda}}^{*})$ is a ${K}^{\ensuremath{-}}p$ bound state. We have found that our original prediction for the presence of ${K}^{\ensuremath{-}}\mathit{pp}$ as a compact bound …