Author(s)
| Beneke, Martin (Munich, Tech. U.) ; Garny, Mathias (Munich, Tech. U.) ; Jaskiewicz, Sebastian (Munich, Tech. U.) ; Szafron, Robert (Munich, Tech. U. ; CERN) ; Vernazza, Leonardo (Nikhef, Amsterdam ; Amsterdam U. ; INFN, Turin ; Turin U.) ; Wang, Jian (Shandong U.) |
Abstract
| We sum the leading logarithms $\alpha_s^n \ln^{2 n-1}(1-z), n = 1,2,$... near the kinematic threshold $z=m_H^2/\hat{s}\to 1$ at next-to-leading power in the expansion in (1$-z$) for Higgs production in gluon fusion. We highlight the new contributions compared to Drell-Yan production in quark-antiquark annihilation and show that the final result can be obtained to all orders by the substitution of the colour factor $C_F\to C_A$, confirming previous fixed-order results and conjectures. We also provide a numerical analysis of the next-to-leading power leading logarithms, which indicates that they are numerically relevant. |