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The analytic two-loop soft function for leading-jet pT
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DOI：10.1007/JHEP08(2022)268.png)
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摘要
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We present the calculation of the two-loop soft function for the transverse momentum distribution of the leading jet produced in association with any colour-singlet system (e.g. a Higgs or a Z boson). This constitutes a central ingredient for the resummation of the above distribution as well as the jet-vetoed cross section at the next-to-next-to-next-to-leading logarithmic order, both of which play an important role in the precision physics programme at the Large Hadron Collider. The calculation is performed in soft-collinear effective theory with an appropriate regularisation of the rapidity divergences that occur in the phase-space integrals. We obtain analytic results by employing an exponential regulator and by taking a Laurent expansion in the jet radius R. All expressions are presented as supplementary material attached to this article.
Keyword:
Resummation
Factorization
Renormalization Group
Higher-Order Perturbative Calculations
Jets and Jet Substructure
期刊
IF:
5.5
论文数:
4.0W
被引数:
13.7W
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引用论文
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