论文标题
通用Dijet软功能以两回路顺序:不相关的排放
Generic dijet soft functions at two-loop order: uncorrelated emissions
论文作者
论文摘要
我们将算法扩展到将双环二重软函数的计算自动化为不遵守非亚伯式指定定理的可观察物,即需要独立计算不相关的发射贡献的物体。由于不相关的双重排放的奇异性结构与相关排放的奇异性结构有很大不同,因此我们引入了一种新型的相空间参数化,该参数分离出相应的差异。所得的积分是在Softserve 1.0中实现的,我们将与这项工作一起释放,并由调节器补充,该调节器与快速性重态化组框架一致。使用我们的自动设置,我们确认了各种喷气式VETO可观察物的现有结果,并为软滴喷射算法提供了新的预测。
We extend our algorithm for automating the calculation of two-loop dijet soft functions to observables that do not obey the non-Abelian exponentiation theorem, i.e. to those that require an independent calculation of the uncorrelated-emission contribution. As the singularity structure of uncorrelated double emissions differs substantially from the one for correlated emissions, we introduce a novel phase-space parametrisation that isolates the corresponding divergences. The resulting integrals are implemented in SoftSERVE 1.0, which we release alongside of this work, and which we supplement by a regulator that is consistent with the rapidity renormalisation group framework. Using our automated setup, we confirm existing results for various jet-veto observables and provide a novel prediction for the soft-drop jet-grooming algorithm.