The results of a partial wave analysis of the $K\sp{+}\overline{K\sp0}\pi\sp{-}$ system produced in the reaction $K\sp{-}p\to \ K\sp{+}\overline{K\sp0}\pi\sp{-}$ ($\Lambda/\Sigma\sp0$) at 8 GeV/c are presented. A total of 2043 events in the mass range 1.24 to 1.64 GeV/c$\sp2$ was collected using Brookhaven National Laboratory's Multiparticle Spectrometer facility. The $K\sp{+}\overline{K\sp0}\pi\sp{-}$ mass spectrum shows a small peak at 1.280 $\pm$.001 GeV/c$\sp2$ and a large peak at 1.438 $\pm$.003 GeV/c$\sp2$. The large peak is consistent with an enhancement at $K\sp{\*}K$ threshold which is cut off by our falling acceptance. There is some evidence for an accumulation of events in the region near 1.53 GeV/c$\sp2$ where previous experiments find an enhancement. The results of the partial wave analysis show that the small peak at 1.28 GeV/c$\sp2$ contains very little $J\sp{PG}$ = 1$\sp{++}$ with $a\sb0$ as the isobar, which implies that the $f\sb1$(1285) contains very little $s\overline s$. The large peak near 1.4 GeV/c$\sp2$ is largely produced by $J\sp{PG}$ = 1$\sp{+-}$ and, to a lesser extent, 1$\sp{++}$ partial waves with $K\sp\*$ as the isobar and with evidence for these waves being produced coherently, 180$\sp\circ$ out of phase. There is evidence for a below $K\sp\* K$ threshold resonance in the $J\sp{PG}$ = 1$\sp{+-}$ partial waves with mass 1344 + 29 $-$ 43 MeV/c$\sp2$ and width 40 + 38 $-$ 40 MeV/c$\sp2$. There is little evidence in the partial wave analysis results for the $f\sbsp{1}{\prime}$(1530). The $J\sp{PG}$ = 0$\sp{-+}$ partial wave with $a\sb0$ as the isobar, although small, shows rising phase in the region from 1.34 to 1.64 GeV/c$\sp2$ indicating resonance behavior.
| Identifer | oai:union.ndltd.org:UMASS/oai:scholarworks.umass.edu:dissertations-8173 |
| Date | 01 January 1991 |
| Creators | King, Edward Walter |
| Publisher | ScholarWorks@UMass Amherst |
| Source Sets | University of Massachusetts, Amherst |
| Language | English |
| Detected Language | English |
| Type | text |
| Source | Doctoral Dissertations Available from Proquest |
Page generated in 0.0019 seconds