Some Aspects ofScattering in theState
- 25 February 1967
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 154 (5), 1558-1569
- https://doi.org/10.1103/physrev.154.1558
Abstract
A study of scattering in the state is presented within the framework of the unitary matrix, or boundary-condition model. Inelastic channels treated are and , where is a , pair. The mass spread of the inelastic channel is taken into account in a unitary manner. It is apparent from an examination of the fits to the data that the channel is vastly preferred as an inelastic mode; the reasons are fully discussed in the text. The crossover of the phase shift at 175 MeV is seen to be impossible with a conventional force input. From a study of eigenphases we conclude that there is no Breit-Wigner resonance in any eigenchannel. Also, by means of the eigenphase representation, we demonstrate a source of possible discrepancies in recent phase-shift analyses. The value of obtained for a best fit, 550 MeV, is compared with other values obtained by various authors. Finally, we examine the effects of the "object" on the Gell-Mann-Okubo mass formula.
Keywords
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