info:eu-repo/semantics/article
A complete O(alpha_S^2) calculation of the signal-background interference for the Higgs diphoton decay channel
Fecha
2013-04Registro en:
de Florian, Daniel Enrique; Fidanza Romani, Nerina Andrea; Hernandez Pinto, Roger Jose; Mazzitelli, Javier Sebastián; Rotstein Habarnau, Yamila Valeria; et al.; A complete O(alpha_S^2) calculation of the signal-background interference for the Higgs diphoton decay channel; Springer; European Physical Journal C: Particles and Fields; 73; 4; 4-2013; 1-5
1434-6044
Autor
de Florian, Daniel Enrique
Fidanza Romani, Nerina Andrea
Hernandez Pinto, Roger Jose
Mazzitelli, Javier Sebastián
Rotstein Habarnau, Yamila Valeria
Sborlini, Germán Fabricio Roberto
Resumen
We present the full O(αS2) computation of the interference effects between the Higgs diphoton signal and the continuum background at the LHC. While the main contribution to the interference originates on the gg partonic subprocess, we find that the corrections from the qg and qq̄ channels amount up to 35 % of it. We discuss the effect of these new subprocesses in the shift of the diphoton invariant mass peak recently reported by S. Martin in (Phys. Rev. D 86:073016, 2012).