A study of the eta eta ' and eta 'eta ' channels produced in central pp interactions at 450 GeV/c

Citation
D. Barberis et al., A study of the eta eta ' and eta 'eta ' channels produced in central pp interactions at 450 GeV/c, PHYS LETT B, 471(4), 2000, pp. 429-434
Citations number
14
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
0370-2693 → ACNP
Volume
471
Issue
4
Year of publication
2000
Pages
429 - 434
Database
ISI
SICI code
0370-2693(20000106)471:4<429:ASOTEE>2.0.ZU;2-F
Abstract
The reactions pp --> p(f)(X-0)p(s), where X-0 is observed decaying to eta e ta' and eta'eta', have been studied at 450 GeV/c. This is the first time th at these channels have been observed in central production and only the sec ond time that the eta'eta' channel has been observed in any production mech anism. In the eta eta' channel there is evidence for the f(0)(1500) and a p eak at 1.95 GeV. The eta'eta' channel shows a peak at threshold which is co mpatible with having J(PC) = 2(++) and spin projection J(Z) = 0. (C) 2000 P ublished by Elsevier Science B.V. All rights reserved.