NEW STATES AS OBSERVED BY THE CRYSTAL BARREL EXPERIMENT

Authors
AUGUSTIN I AMSLER C BAKER CA BARNETT BM BATTY CJ BEUCHERT K BIRIEN P BISTIRLICH J BLUM P BOSSINGHAM R BOSSY H BRAUNE K BROSE J BUGG DV BURCHELL M CASE T CHUNG SU COOPER A CROWE KM DIETZ HP VONDOMBROWSKI S DOSER M DUNNWEBER W ENGELHARDT D ENGLERT M FAESSLER MA FELIX C FOLGER G HACKMANN R HADDOCK RP HEINSIUS FH HESSEY NP HIDAS P ILLINGER P JAMNIK D JAVORFI Z KALINOWSKY H KAMMLE B KIEL T KISIEL J KLEMPT E KOBEL M KOCH H KOLO C KONIGSMANN K KUNZE M LANDUA R LUDEMANN J MATTHAEY H MERKEL M MERLO JP MEYER CA MEYERBERKHOUT U MONTANET L NOBLE A PETERS K PINTER G RAVNDAL S SANJARI AH SCHAFER E SCHMID B SCHMIDT P SPANIER S STRASSBURGER C STROHBUSCH U SUFFERT M URNER D VOLCKER C WALTER F WALTHER D WIEDNER U WINTER N ZOLL J ZUPANCIC C
Citation
I. Augustin et al., NEW STATES AS OBSERVED BY THE CRYSTAL BARREL EXPERIMENT, Nuclear physics. A, 558, 1993, pp. 30000003-30000012
Citations number
14
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. A → ACNP
ISSN journal
03759474
Volume
558
Year of publication
1993
Pages
30000003 - 30000012
Database
ISI
SICI code
0375-9474(1993)558:<30000003:NSAOBT>2.0.ZU;2-Y
Abstract
The Crystal Barrel Detector has been in operation since October 1989. Results on the analysis of the annihilation of protonium at rest into three pseudoscalars is presented. The pi0pi0pi0 final state confirms t he existence of f2(1520)-->pi0pi0. In the etaeta system of the pi0etae ta final state an isoscalar J(PC) = 0++ resonance with a mass of 1560 MeV/c2 and a width of 245 MeV/c2 is observed. The identification with f0(1590) is doubtful since the etaeta' decay is not observed with the corresponding strength. Our analysis yields an upper limit for the rel ative branching ratio BR(f0(1560)-->etaeta')/BR(fo(1560)-->etaeta) < 0 .24.