N-jettiness soft function at next-to-next-to-leading order

被引：93
作者：
Boughezal, Radja [1 ]
Liu, Xiaohui [2 ,3 ]
Petriello, Frank [4 ,5 ]
机构：
[1] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA
[2] Univ Maryland, Maryland Ctr Fundamental Phys, College Pk, MD 20742 USA
[3] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
[4] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60201 USA
[5] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA
来源：
PHYSICAL REVIEW D | 2015年 / 91卷 / 09期
关键词：
2-LOOP QCD CORRECTIONS;
D O I：
10.1103/PhysRevD.91.094035
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present a general framework for the calculation of soft functions for SCETI observables through next-to-next-to-leading order (NNLO) in the strong coupling constant. As an example of our formalism we show how it can be used to obtain the complete NNLO soft function for the N-jettiness event shape variable. We present numerical results for two examples with phenomenological impact: the one-jettiness soft function for both electron-proton and proton-proton collisions.
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页数：12
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