Analysis of the f{sub 1}(1285){pi}{sup {minus}} system produced in {pi}{sup {minus}}p interactions at 18 GeV/c
The reaction {pi}{sup {minus}}p{r_arrow}f{sub 1}(1285){pi}{sup {minus}}p{r_arrow}{eta}{pi}{sup +}{pi}{sup {minus}}{pi}{sup {minus}}p at 18 GeV/c is being studied. The f{sub 1}{pi}{sup {minus}} system is expected to be an important decay mode for a hybrid meson and a previous experiment (BNL E818) has shown some evidence for such a state with J{sup PC}=1{sup {minus}+}. The existence of a high quality sample of f{sub 1}(1285)/{eta}(1295){pi}{sup {minus}} events in the {eta}{pi}{sup +}{pi}{sup {minus}}{pi}{sup {minus}}p final state has been established. Twelve thousand events have been selected from the 1994 E852 data run. A partial-wave analysis of this sample is presented. All significant waves are produced via natural parity exchange (i.e. f{sub 2}(1270) or {rho}{sup 0}(770) exchange). The strongest contributions are from the 1{sup ++}, 1{sup {minus}+}, and 2{sup {minus}+} waves. Interesting relative phase motion is observed between these waves. {copyright} {ital 1998 American Institute of Physics.}
- OSTI ID:
- 646395
- Report Number(s):
- CONF-970842-; ISSN 0094-243X; TRN: 98:008000
- Journal Information:
- AIP Conference Proceedings, Vol. 432, Issue 1; Conference: Hadron `97. 7th international conference on hadron spectroscopy, Upton, NY (United States), 28-30 Aug 1997; Other Information: PBD: May 1998
- Country of Publication:
- United States
- Language:
- English
Similar Records
Observation of the {eta}(1295) and {eta}(1440) produced in the reaction {pi}{sup {minus}}p{r_arrow}{eta}{pi}{sup +}{pi}{sup {minus}}n at 18 Gev/c
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