| Full text | |
| Author(s): |
Boito, D.
;
das Neves, G.
;
Piclum, J.
Total Authors: 3
|
| Document type: | Journal article |
| Source: | PHYSICAL REVIEW D; v. 106, n. 9, p. 10-pg., 2022-11-23. |
| Abstract | |
In this article, we present the result for the QCD corrections to the decay of the Higgs boson into two photons in the large-beta(0) limit of QCD, providing the first two terms in the heavy-top expansion. From our results, one can easily read off the exact leading-n(f) QCD contributions in analytic form to all orders in the strong coupling, alpha(s), where n(f) is the number of massless quarks, and identify the leading renormalon singularities. We give explicit results for the leading-n(f) coefficients at six and seven loops and use the large-beta(0) result to speculate about the size of yet unknown (but small) higher-order contributions to the QCD series. (AU) | |
| FAPESP's process: | 15/20689-9 - Precise determination of fundamental QCD parameters |
| Grantee: | Diogo Rodrigues Boito |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 18/12305-4 - Angular distributions of the decay tau to K PI neutrino |
| Grantee: | Gabriel Augusto das Neves |
| Support Opportunities: | Scholarships in Brazil - Master |
| FAPESP's process: | 19/17046-0 - Higher-order perturbative QCD in the decay H to gg |
| Grantee: | Gabriel Augusto das Neves |
| Support Opportunities: | Scholarships abroad - Research Internship - Master's degree |
| FAPESP's process: | 21/06756-6 - Testing the standard model: precision QCD and muon g-2 |
| Grantee: | Diogo Rodrigues Boito |
| Support Opportunities: | Research Grants - Young Investigators Grants - Phase 2 |