Measurement of the cross-section for the γγ→p(p)over-bar process at √S=183-189 GeV at LEP

被引:0
|
作者
Barillari, T [1 ]
机构
[1] Univ Colorado, Boulder, CO 80309 USA
来源
PHOTON 2001 | 2002年
关键词
D O I
10.1142/9789812777157_0044
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The OPAL detector at LEP has been used to study the exclusive production of proton antiproton pairs in the collisions of two quasi-real photons using data taken at root s = 183GeV and 189GeV. The results here presented are for gamma gamma invariant masses, W, in the range 2.15 GeV < W < 3.95 GeV. The cross-section measurements are compared with previous data and with recent analytic calculations based on the quark-diquark model predictions.
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页码:223 / 226
页数:4
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