SEARCH FOR RESONANT ELECTRON POSITRON ANNIHILATION-IN-FLIGHT

被引：6
|
作者：
TRZASKA, WH [1 ]
DEJBAKHSH, H [1 ]
DUTTA, SB [1 ]
LI, Q [1 ]
CORMIER, TM [1 ]
机构：
[1] TEXAS A&M UNIV SYST,INST CYCLOTRON,COLLEGE STN,TX 77843
来源：
PHYSICS LETTERS B | 1991年 / 269卷 / 1-2期
关键词：
D O I：
10.1016/0370-2693(91)91451-Z
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have studied the energy dependence of the electron-positron annihilation-in-flight cross section for di-photon invariant masses in the range of 1600-2000 keV. At the 95% confidence level, no resonances are observed implying, for example, GAMMA-gamma-gamma-GAMMA-ee/GAMMA < 6.6 meV at the location of the anomalous peak in e+e- sum energy at almost-equal-to 800 keV observed in heavy ion reactions.
引用
收藏
页码：54 / 58
页数：5
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