| Article | |
| Report number | arXiv:2212.10447 ; CERN-TH-22-211 ; MITP/22-109 ; TUM-HEP-1441/22 |
| Title | Factorization at Next-to-Leading Power and Endpoint Divergences in $gg\to h$ Production |
| Related title | Factorization at next-to-leading power and endpoint divergences in gg → h production |
| Author(s) | Liu, Ze Long (CERN) ; Neubert, Matthias (Mainz U., Inst. Phys. ; U. Mainz, PRISMA ; Cornell U., LEPP ; Cornell U., Phys. Dept.) ; Schnubel, Marvin (U. Mainz, PRISMA ; Mainz U., Inst. Phys.) ; Wang, Xing (Munich, Tech. U. ; ORIGINS, Garching) |
| Publication | 2023-06-27 |
| Imprint | 2022-12-20 |
| Number of pages | 46 |
| Note | 46 pages, 7 figures |
| In: | JHEP 2306 (2023) 183 |
| DOI | 10.1007/JHEP06(2023)183 |
| Subject category | hep-th ; Particle Physics - Theory ; hep-ph ; Particle Physics - Phenomenology |
| Abstract | We derive a factorization theorem for the Higgs-boson production amplitude in gluon-gluon fusion induced by a light-quark loop, working at next-to-leading power in soft-collinear effective theory. The factorization is structurally similar to that obtained for the $h\to\gamma\gamma$ decay amplitude induced by a light-quark loop, but additional complications arise because of external color charges. We show how the refactorization-based subtraction scheme developed in previous work leads to a factorization theorem free of endpoint divergences. We use renormalization-group techniques to predict the logarithmically enhanced terms in the three-loop $gg\to h$ form factor of order $\alpha_s^3\ln^k(-M_h^2/m_b^2)$ with $k=6,5,4,3$. We also resum the first three towers of leading logarithms, $\alpha_s^n\ln^{2n-k}(-M_h^2/m_b^2)$ with $k=0,1,2$, to all orders of perturbation theory. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2023-2024 The Authors (License: CC-BY-4.0), sponsored by SCOAP³ |
Corresponding record in: Inspire
Записът е създаден на 2022-12-22, последна промяна на 2024-10-02