Production of electroweak bosons in e+e- annihilation at high energies -: art. no. 114018

被引:3
|
作者
Ermolaev, BI
Oliveira, SM
Troyan, SI
机构
[1] Univ Lisbon, CFTC, P-1649003 Lisbon, Portugal
[2] St Petersburg Inst Nucl Phys, Gatchina 188300, Russia
[3] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia
关键词
D O I
10.1103/PhysRevD.66.114018
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Production of electroweak bosons in e(+)e(-) annihilation into quarks and into leptons at energies much greater than 100 GeV is considered. We account for double-logarithmic contributions to all orders in electroweak couplings. It is assumed that the bosons are emitted in multi-Regge kinematics. Explicit expressions for the scattering amplitudes of the process are obtained. It is shown that the cross sections of the photon and Z production have the identical energy dependence and asymptotically their ratio depends only on the Weinberg angle, whereas the energy dependence of the cross section of W production is suppressed by a factor of s(-0.4) compared to them.
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页数:13
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