期刊
EUROPEAN PHYSICAL JOURNAL C
卷 80, 期 6, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-020-8047-y
关键词
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资金
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [396021762 - TRR 257]
- Doctoral School Karlsruhe School of Elementary and Astroparticle Physics: Science and Technology (KSETA)
We present the calculation of the next-to-next-to-leading order (NNLO) zero-jettiness beam and soft functions, up to the second order in the expansion in the dimensional regularization parameter epsilon. These higher order terms are needed for the computation of the next-to-next-to-next-to-leading order ((NLO)-L-3) zero-jettiness soft and beam functions. As a byproduct, we confirm theO(epsilon(0)) results for NNLO beam and soft functions available in the literature by Gaunt et al. (JHEP 4:113, 2014), Gaunt et al. (JHEP 8:20, 2014), Boughezal et al. (Phys Rev D 96:34001, 2017), Monni et al. (JHEP 8:10, 2011) and Kelley et al. (Phys Rev D 84:45022, 2011).
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