论文标题

高能生产的$ t {\ bar t} $的高阶校正

Higher-order corrections for $t{\bar t}$ production at high energies

论文作者

Kidonakis, Nikolaos

论文摘要

我介绍了$ t {\ bar t} $生产交叉部分的理论计算,这是$^3 $ lo proton-proton碰撞的。我表明,软绿色的校正不仅在LHC能量中占主导地位的扰动膨胀,而且还可以通过100 TEV来实现未来的对撞机能量。为各种碰撞能提供了详细的结果。 $ k $的因子很大,随着能量的增加而缓慢增加。随着我们转向较高的扰动顺序,量表不确定性大大减少。

I present theoretical calculations of $t{\bar t}$ production cross sections through aN$^3$LO in proton-proton collisions. I show that soft-gluon corrections dominate the perturbative expansion not only for LHC energies but also for future collider energies through 100 TeV. Detailed results are presented for various collision energies. The $K$-factors are large and increase slowly with increasing energy. The scale uncertainties decrease greatly as we move to higher perturbative orders.

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