ELECTROMAGNETIC ANNIHILATION OF E+E- INTO QUARKONIUM STATES WITH EVEN CHARGE CONJUGATION

被引：240
作者：
KUHN, JH [1 ]
KAPLAN, J [1 ]
SAFIANI, EGO [1 ]
机构：
[1] LPTHE PARIS 6 & 7,F-75221 PARIS C 05,FRANCE
来源：
NUCLEAR PHYSICS B | 1979年 / 157卷 / 01期
关键词：
D O I：
10.1016/0550-3213(79)90055-5
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We calculate the production of narrow resonances with even charge conjugation 3PJ=1,2 in e+e- annihilation in the quarkonium and vectordominance models. We give unitarity bounds for Γ(3PJ → e+e-) in terms of Γ(3PJ → γγ) and Γ(3PJ → e+e-). The electromagnetic production dominates through the neutral current at low energies independent of details of the model. For masses above 10 GeV the situation is reversed. © 1979.
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页码：125 / 144
页数：20
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