Observation of a new J(PC)=1(+-) isoscalar state in the reaction pi(-)p ->omega eta n at 18 GeV/c

Authors
Eugenio, P Adams, GS Adams, T Bar-Yam, Z Bishop, JM Bodyagin, VA Brabson, BB Brown, DS Cason, NM Chung, SU Crittenden, RR Cummings, JP Demianov, AI Denisov, S Dorofeev, V Dowd, JP Dzierba, AR Gribushin, AM Gunter, J Hackenburg, RW Hayek, M Ivanov, EI Kachaev, I Kern, W King, E Kodolova, OL Korotkikh, VL Kostin, MA Kuhn, J Lindenbusch, R Lipaev, V LoSecco, JM Manak, JJ Napolitano, J Nozar, M Olchanski, C Ostrovidov, AI Pedlar, TK Popov, A Rust, DR Ryabchikov, D Sanjari, AH Sarycheva, LI Scott, E Seth, KK Shenhav, N Shepherd, WD Sinev, NB Smith, JA Smith, PT Stienike, DL Sulanke, T Taegar, SA Teige, S Thompson, DR Vardanyan, IN Weygand, DP White, D Willutzki, HJ Wise, J Witkowski, M Yershov, AA Zhao, D
Citation
P. Eugenio et al., Observation of a new J(PC)=1(+-) isoscalar state in the reaction pi(-)p ->omega eta n at 18 GeV/c, PHYS LETT B, 497(3-4), 2001, pp. 190-198
Citations number
28
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
03702693 → ACNP
Volume
497
Issue
3-4
Year of publication
2001
Pages
190 - 198
Database
ISI
SICI code
0370-2693(20010111)497:3-4<190:OOANJI>2.0.ZU;2-8
Abstract
Results are presented on a partial wave analysis of the omega eta final sta te produced in pi (-)p interactions at 18 GeV/e where omega --> pi (+)pi (- )pi (0), pi (0) --> 2 gamma, and eta --> 2 gamma. We observe the previously unreported decay mode omega (1650) --> omega eta and a new 1(+-) meson sta te h(1)(1595) with a mass M = 1594(+/-15)((+10)(-60)) MeV/c(2) and a width Gamma = 384(+/-60)((+70)(-100)) MeV/c(2). The h(1)(1595) state exhibits res onant-like phase motion relative to the omega (1650). (C) 2001 Elsevier Sci ence B.V. All rights reserved.