Transverse-momentum resummation for the signal-background interference in the $H \to \gamma\gamma$ channel at the LHC
| Autor: | Cieri, Leandro, Coradeschi, Francesco, de Florian, Daniel, Fidanza, Nerina |
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| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Phys. Rev. D 96, 054003 (2017) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.96.054003 |
| Popis: | We present an upgraded calculation of the effects of resonance-continuum interference for the Higgs boson decaying to two photons at the Large Hadron Collider, at next-to-leading order in the strong coupling $\alpha_S$, $O(\alpha_S^3)$, and including transverse-momentum ($q_T$) resummation at next-to-leading logarithmic accuracy. We study the importance of the interference contribution in different transverse-momentum regions, with a particular focus on the low $q_T$ region $q_T^2 << Q^2$ (with $Q^2$ being the invariant diphoton mass) where resummation becomes essential for a reliable calculation. Comment: 9 pages, 7 fiugres |
| Databáze: | arXiv |
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