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arXiv · 2301.11786

Soft-parton contributions to heavy-quark production at low transverse momentum

Stefano Catani·Simone Devoto·Massimiliano Grazzini·Javier Mazzitelli
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Abstract

We consider QCD radiative corrections to the production of a heavy-quark pair in hadronic collisions. We present the computation of the soft-parton contributions at low transverse momentum of the heavy-quark pair up to second order in the QCD coupling $\alpha_s$. These results complete the evaluation at the next-to-next-to-leading order (NNLO) of the transverse-momentum resummation formula for this process. Moreover, they give all the ingredients that are needed for the NNLO implementation of the qT subtraction formalism for heavy-quark production. We discuss the details of the computation and we provide a code that can be used to obtain the relevant results in numerical form.

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Stefano Catani, Simone Devoto, Massimiliano Grazzini, Javier Mazzitelli. 2023-01-27. Soft-parton contributions to heavy-quark production at low transverse momentum. https://doi.org/10.1007/jhep04(2023)144

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