Abstract
We present an analytic calculation of the one-loop correction to the double-real emission contribution to the zero-jettiness soft function at N3LO in QCD, accounting for both gluon-gluon and quark-antiquark soft final-state partons. We explain all the relevant steps of the computation including the reduction of phase-space integrals to master integrals in the presence of Heaviside functions, and the methods we employed to compute them.
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Acknowledgments
We are grateful to Rayan Haindl for participating in the initial stages of this project. The research of KM and AP was partially supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under grant 396021762-TRR 257. The research of MD was supported by the European Research Council (ERC) under the European Union’s research and innovation programme grant agreement 949279 (ERC Starting Grant HighPHun). The work of DB is supported in part by the Swiss National Science Foundation (SNSF) under contracts 200020_188464 and 200020_219367.
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Baranowski, D., Delto, M., Melnikov, K. et al. One-loop corrections to the double-real emission contribution to the zero-jettiness soft function at N3LO in QCD. J. High Energ. Phys. 2024, 114 (2024). https://doi.org/10.1007/JHEP04(2024)114
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DOI: https://doi.org/10.1007/JHEP04(2024)114