caa a22 4500 465801617 CHVBK 20180323112054.0 cr unu---uuuuu 170327e19901201xx s 000 0 eng 10.1007/BF01294983 doi (NATIONALLICENCE)springer-10.1007/BF01294983 A study of meson-baryon couplings in the constituent quark model [Elektronische Daten] [W. Blask, S. Furui, R. Kaiser, B. Metsch, M. Huber] Within the framework of the constituent quark model we discuss the effects of different types of meson-baryon-baryon vertex operators on the form factors and the coupling strengths of the lowest-lying positive and negative parity non-strange baryons. We compare the quark pair creation model (3P0-model) with the SU(6)-model in which mesons are treated as elementary fields that directly couple to the quarks. The latter model is employed both in the so-called static limit and in a modification motivated by Galilei invariance. It is demonstrated that the inclusion of non-static effects simulates some features of the3P0 vertex. Especially the reaction πN→ππN is found to be very sensitive to the different assumptions on the dynamics of theq¯q pair creation process. More indirect hints for the internal structure of the mesons might be obtained from the predicted asymmetry for the two form factors ofN→Δ+π andΔ→N+π, which occurs in the3P0-model, only. Springer-Verlag, 1990 13.30.Eg nationallicence 12.40.Aa nationallicence 14.20.Gk nationallicence Blask W. Institut für Theoretische Kernphysik, Universität Bonn, Nussallee 14-16, W-5300, Bonn, Germany aut Furui S. Institut für Theoretische Kernphysik, Universität Bonn, Nussallee 14-16, W-5300, Bonn, Germany aut Kaiser R. Institut für Theoretische Kernphysik, Universität Bonn, Nussallee 14-16, W-5300, Bonn, Germany aut Metsch B. Institut für Theoretische Kernphysik, Universität Bonn, Nussallee 14-16, W-5300, Bonn, Germany aut Huber M. Institut für Theoretische Kernphysik, Universität Bonn, Nussallee 14-16, W-5300, Bonn, Germany aut Zeitschrift für Physik A Atomic Nuclei Springer-Verlag 337/4(1990-12-01), 451-463 0939-7922 337:4<451 1990 337 218 https://doi.org/10.1007/BF01294983 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01294983 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Blask W. Institut für Theoretische Kernphysik, Universität Bonn, Nussallee 14-16, W-5300, Bonn, Germany aut NATIONALLICENCE 700 1- Furui S. Institut für Theoretische Kernphysik, Universität Bonn, Nussallee 14-16, W-5300, Bonn, Germany aut NATIONALLICENCE 700 1- Kaiser R. Institut für Theoretische Kernphysik, Universität Bonn, Nussallee 14-16, W-5300, Bonn, Germany aut NATIONALLICENCE 700 1- Metsch B. Institut für Theoretische Kernphysik, Universität Bonn, Nussallee 14-16, W-5300, Bonn, Germany aut NATIONALLICENCE 700 1- Huber M. Institut für Theoretische Kernphysik, Universität Bonn, Nussallee 14-16, W-5300, Bonn, Germany aut NATIONALLICENCE 773 0- Zeitschrift für Physik A Atomic Nuclei Springer-Verlag 337/4(1990-12-01), 451-463 0939-7922 337:4<451 1990 337 218 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer