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À propos de : Quasi-Bound 3He − η State and Spin-Observables of the Reaction pd → 3He η        

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  • Quasi-Bound 3He − η State and Spin-Observables of the Reaction pd → 3He η
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  • A formalism for total set of spin observables of the reaction pd → 3Heη derived in a model independent way is presented and a possibility to perform a complete polarization experiment is investigated. Separation of s- and p-wave amplitudes of this reaction in the threshold region allows one to determine a position of the quasibound pole in the 3He − η system. It is shown that in order to get such a separation one should measure spin-transfer coefficients in addition to analyzing powers and spin-correlations. Specific observables, given by products of one s- and one p-wave amplitudes, are found. Measurement of these observables will provide new independent information on the 3He − η pole position and this allows one to determine whether the 3He − η state is quasi-bound or anti-bound.
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  • epjconf_fb19_03019
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  • © Owned by the authors, published by EDP Sciences, 2010
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  • Owned by the authors, published by EDP Sciences
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