Abstract
We present a subtraction method for the calculation of real-radiation integrals at NLO in hybrid kT-factorization. The main difference with existing methods for collinear factorization is that we subtract the momentum recoil, occurring due to the mapping from an (n + 1)-particle phase space to an n-particle phase space, from the initial-state momenta, instead of distributing it over the final-state momenta.
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Acknowledgments
The authors would like to thank Rene Poncelet for useful discussions and remarks. This work was supported by grant no. 2019/35/B/ST2/03531 of the Polish National Science Centre.
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Giachino, A., van Hameren, A. & Ziarko, G. A new subtraction scheme at NLO exploiting the privilege of kT-factorization. J. High Energ. Phys. 2024, 167 (2024). https://doi.org/10.1007/JHEP06(2024)167
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DOI: https://doi.org/10.1007/JHEP06(2024)167