Real radiation at next-to-next-to-leading order in QCD:: e+e-→2 jets through O(αs2) -: art. no. 032002

被引:80
作者
Anastasiou, C [1 ]
Melnikov, K
Petriello, F
机构
[1] Stanford Univ, Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA
[2] Univ Hawaii, Dept Phys & Astron, Honolulu, HI 96822 USA
[3] Johns Hopkins Univ, Dept Phys, Baltimore, MD 21218 USA
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevLett.93.032002
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present a calculation of the differential two-jet cross section in e(+)e(-) annihilation through next-to-next-to-leading order (NNLO) in the strong coupling constant alpha(s). The calculation is performed using a new method for dealing with real radiation suggested recently by us. For the first time, the two-jet event rate is computed directly, without any reference to the inclusive cross section e(+)e(-)-->hadrons. We also calculate the energy distribution of the leading jet in e(+)e(-)-->2 jets and find significant modifications of the shape of this distribution at NNLO.
引用
收藏
页码:032002 / 1
页数:4
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