Institut für Physik, Universität Mainz, D-55099 Mainz, Germany.
Phys Rev Lett. 2012 Jan 20;108(3):032005. doi: 10.1103/PhysRevLett.108.032005. Epub 2012 Jan 19.
We present next-to-leading order corrections in the leading color approximation for jet rates in electron-positron annihilation up to seven jets. The results for the two-, three-, and four-jet rates agree with known results. The NLO jet rates have been known previously only up to five jets. The results for the six- and seven-jet rate are new. The results are obtained by a new and efficient method based on subtraction and numerical integration.
我们在领头色近似下给出了电子-正电子湮没中多达七个喷注的喷注率的次领头阶修正。两喷注、三喷注和四喷注率的结果与已知结果一致。此前,仅在五喷注情况下知道 NLO 喷注率。六喷注和七喷注率的结果是新的。结果是通过一种新的和有效的基于相消和数值积分的方法得到的。