Resonance formation in two-photon collisions in L3 at LEP

被引：0
|
作者：
VanRhee, T [1 ]
机构：
[1] NIKHEF H,NL-1098 SJ AMSTERDAM,NETHERLANDS
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 1997年 / 12卷 / 22期
关键词：
D O I：
10.1142/S0217751X97002218
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The formation of quarkonium resonances in gamma gamma collisions has been studied with the L3 detector at LEP, using data taken from 1991 to 1995. The eta' is observed in the channel pi(+)pi(-)gamma, and its two-photon width is measured. The Q(2)-dependence of the eta' formation cross section has been studied in the interval 0.015< Q(2) <10.0 GeV2, and the form factor has been obtained. The charmonium state chi(c2) is identified through its decay to gamma J/psi, J/psi --> e(+)e(-) or mu(+)mu(-), and a preliminary value for the chi(c2) two-photon width is given.
引用
收藏
页码：4059 / 4067
页数：9
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