TY - JOUR A1 - Weber, Hans Jürgen A1 - Greiner, Walter T1 - Treatment of cluster channels in nuclear reactions above the two-particle threshold T2 - Zeitschrift für Naturforschung, A N2 - Within the framework of the eigenchannel reaction theory above the two-particle thresholdcluster channels are introduced. The eigenchannels of the S-matrix are used, i. e. continuum stateswhich diagonalize both the S-matrix and the nuclear Hamiltonian and represent for each reactionenergy a discrete set of coupled channel wave functions with a common (eigen-) phase. Especiallythe emission of a deuteron is discussed. It is shown that the cluster channels supplement the energy-correlated channels describing the energy partition £1 + e2 = E —Ef and that asymptotic channelorthogonality holds. The characteristic feature of the cluster channels as compared to the energy-correlated channels is that their final state interaction is not limited to a finite matching volumecomparable to nuclear sizes. Y1 - 2014 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/74055 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-740555 SN - 1865-7109 VL - 24 IS - 5 SP - 736 EP - 746 PB - Verlag der Zeitschrift für Naturforschung CY - Tübingen ER -