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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