Dittmaier S, Uwer P, Weinzierl S
Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), D-80805 München, Germany.
Phys Rev Lett. 2007 Jun 29;98(26):262002. doi: 10.1103/PhysRevLett.98.262002.
We report on the calculation of the next-to-leading-order QCD corrections to the production of top-quark-top-antiquark pairs in association with a hard jet at the Fermilab Tevatron and the CERN Large Hadron Collider. We present results for the tt[over ]+jet cross section and the forward-backward charge asymmetry. The corrections stabilize the leading-order prediction for the cross section. The charge asymmetry receives large corrections.
我们报告了在费米实验室的Tevatron和欧洲核子研究中心的大型强子对撞机上,对与一个硬喷注相关联产生的顶夸克-顶反夸克对进行次领头阶量子色动力学修正的计算。我们给出了tt+喷注截面和前后电荷不对称性的结果。这些修正稳定了截面的领头阶预测。电荷不对称性受到了很大的修正。