NNLO soft function for threshold single inclusive jet production

We present a computation of the global soft function for single inclusive hadronic jet production at next-to-next-to-leading order in the strong coupling constant involving four lightlike Wilson lines. Our soft function belongs to SCETI observables, which are not sensitive the rapidity divergences a...

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Bibliographic Details
Published in:Physical review. D 2021-09, Vol.104 (5), p.1, Article 054032
Main Authors: Balytskyi, Yaroslav, Gao, Jianbo
Format: Article
Language:English
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Summary:We present a computation of the global soft function for single inclusive hadronic jet production at next-to-next-to-leading order in the strong coupling constant involving four lightlike Wilson lines. Our soft function belongs to SCETI observables, which are not sensitive the rapidity divergences and obey the non-Abelian exponentiation theorem. We provide the calculation of the soft function involving four collinear light-cone directions for all 2 → 2 processes extending the previous result. We perform the threshold resummation for these processes at the next-to-next-to-leading logarithmic accuracy and present the corresponding numerical results.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.104.054032