Del Duca Vittorio, Duhr Claude, Kardos Adam, Somogyi Gábor, Trócsányi Zoltán
Institute for Theoretical Physics, ETH Zürich, 8093 Zürich, Switzerland.
CERN Theory Division, 1211 Geneva 23, Switzerland.
Phys Rev Lett. 2016 Oct 7;117(15):152004. doi: 10.1103/PhysRevLett.117.152004.
We introduce a completely local subtraction method for fully differential predictions at next-to-next-to-leading order (NNLO) accuracy for jet cross sections and use it to compute event shapes in three-jet production in electron-positron collisions. We validate our method on two event shapes, thrust and C parameter, which are already known in the literature at NNLO accuracy and compute for the first time oblateness and the energy-energy correlation at the same accuracy.
我们引入了一种完全局部减法方法，用于在次下一个领头阶（NNLO）精度下对喷注截面进行全微分预测，并使用它来计算电子 - 正电子碰撞中三喷注产生的事例形状。我们在两个事例形状（即文献中已在NNLO精度下已知的推挤度和C参数）上验证了我们的方法，并首次在相同精度下计算了扁率和能量 - 能量关联。
