论文标题
nnlo零杰特梁和软函数在维度登记参数$ε$中较高订单
NNLO zero-jettiness beam and soft functions to higher orders in the dimensional-regularization parameter $ε$
论文作者
论文摘要
我们介绍了近距离领导顺序(NNLO)零杰特梁和软功能的计算,最多可在尺寸正则化参数$ε$中的扩展中的二阶计算。这些高阶项是需要计算近隔到隔壁的订单(n $^3 $ lo)零杰特和梁功能的。作为副产品,我们确认文献中可用的NNLO光束和软功能的$ O(ε^0)$结果。
We present the calculation of the next-to-next-to-leading order (NNLO) zero-jettiness beam and soft functions, up to the second order in the expansion in the dimensional regularization parameter $ε$. These higher order terms are needed for the computation of the next-to-next-to-next-to-leading order (N$^3$LO) zero-jettiness soft and beam functions. As a byproduct, we confirm the $O(ε^0)$ results for NNLO beam and soft functions available in the literature.