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Top quark threshold production in γγ collision in the next-to-leading order

被引：42
|
作者：
Penin, AA [1 ]
Pivovarov, AA [1 ]
机构：
[1] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia
来源：
NUCLEAR PHYSICS B | 1999年 / 550卷 / 1-2期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1016/S0550-3213(99)00205-9
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：
The total cross section of the top quark-antiquark pair production near threshold in yy collision is computed analytically up to the next-to-leading order in perturbative and non-relativistic expansion for a general photon helicity. The approximation includes the first-order corrections in the strong coupling constant and the heavy quark velocity to the non-relativistic Coulomb approximation. (C) 1999 Elsevier Science B.V. All rights reserved.
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页码：375 / 396
页数：22
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