A study of the ({omega}{pi}{sup {plus_minus}}{pi}{sup {minus_plus}}) state, where {omega}{r_arrow}{pi}{sup +}{pi}{sup {minus}}{pi}{sup 0} in the reaction {pi}{sup {minus}}p{r_arrow}{pi}{sup +}{pi}{sup +}{pi}{sup {minus}}{pi}{sup {minus}}{pi}{sup 0}n at 18 GeV/c
This study is based on a subset of events of the type {pi}{sup +}{pi}{sup +}{pi}{sup {minus}}{pi}{sup {minus}}{gamma}{gamma}, from the {pi}{sup {minus}}p interaction in the 1995 run of E852, {ital A Search for Mesons with Unusual Quantum Numbers} at the MPS facility of BNL. The data set is reduced such that it contains events of the type {omega}{pi}{sup {minus}}{pi}{sup +} to be used in the Partial Wave Analysis (PWA) of the system. In the {omega}{pi}{sup {plus_minus}} and the 4{pi} mass spectra, we observe b{sub 1}(1235) and {rho}{sub 3}(1690) signals. In the {pi}{sup {minus}}{pi}{sup +} off of the {omega} we see a large contribution due to {rho}(770) followed by a smaller contribution due to f{sub 2}(1270). The b{sub 1}{sup {minus_plus}} production seems to be enhanced for the {omega}{pi}{sup {minus}}{pi}{sup +} mass near 2 GeV, with more b{sub 1}{sup {minus}} produced than b{sub 1}{sup +}. A spin parity analysis of the {omega}{pi}{sup {minus}}{pi}{sup +} system to look for radial excitations and states with exotic quantum numbers is under way. {copyright} {ital 1998 American Institute of Physics.}
- OSTI ID:
- 646459
- Report Number(s):
- CONF-970842--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 432; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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