CROSS-SECTION MEASUREMENT AND SPIN PARITY ANALYSIS OF THE REACTION GAMMA-GAMMA-]OMEGA-RHO

被引：0
|
作者：
BEHREND, HJ
机构：
[1] Deutsches Elektronen-Synchroton, DESY
[2] University of Glasgow, Glasgow
[3] II. Institut für Experimentalphysik, Universität Hamburg
[4] Kernforschungszentrum Karlsruhe und Universität Karlsruhe
[5] Max-Planck-Institut für Physik und Astrophysik
[6] Laboratoire de l'Accélérateur Linéaire
[7] Laboratoire de Physique Nucléaire et des Hautes Energies, Université de Paris
[8] University of Rome, INFN
[9] Centre d'Etudes Nucléaires, Saclay
[10] Tel-Aviv University, Tel-Aviv
来源：
PHYSICS LETTERS B | 1991年 / 257卷 / 3-4期
关键词：
D O I：
10.1016/0370-2693(91)91928-O
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present results of an analysis of the reaction gamma-gamma --> omega-rho in the two-photon process e+e- --> epsilon+e-2-pi+2-pi-pi-0 in the untagged mode. The cross section is largely compatible with previous determinations; however, we do not confirm the enhancement claimed at 1.9 GeV. All observed omega's are accompanied by rho's in the recoiling pi-pi spectrum. An angular correlation analysis shows that the data is not dominated by a single spin-parity state, thus establishing severe constraints on qqqBARqBAR models which predict J(P) = 2+.
引用
收藏
页码：505 / 513
页数：9
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