Description
Chair: Gherardo Vita
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Martin Beneke (TUM)4/16/24, 11:30 AMTalk
The renormalization-group (RG) kernel for the next-to-leading power soft-quark function relevant to Higgs production in gluon-gluon fusion has up-to-now been inferred only from RG consistency of the factorization formula. In this talk the direct computation with position-space techniques is discussed, which reveals some subtleties related to incoming colour charges from "infinity". For the...
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Alessandro Gavardi (Deutsches Elektronen-Synchrotron DESY)4/16/24, 12:00 PMTalk
One of the computational bottlenecks in state-of-the-art QCD NNLO calculations matched to resummation is the computation of the non-singular contributions to the spectrum of the given resolution variable (for example, the transverse momentum $q_T$ of the color singlet).
While we have a vast set of tools for computing and resumming the singular contributions, the non-singular ones are still...
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Patrick Hager (MITP, Johannes Gutenberg University Mainz)4/16/24, 12:30 PMTalk
A crucial step in the investigation of subleading-power corrections is the process-dependent matching from QCD onto SCET$_{\rm II}$. In this matching, one often first performs the hard matching to SCET$_{\rm I}$ and in a second step matches onto SCET$_{\rm II}$.
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However, the matching from SCET$_{\rm I}$ to SCET$_{\rm II}$ is process-independent, and thus lends itself to a systematic...