A complete O(alpha_S^2) calculation of the signal-background interference for the Higgs diphoton decay channel

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).

Palabras clave: Higgs , Diphoton Channel , Qcd

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Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)

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URI: http://hdl.handle.net/11336/660

DOI: http://dx.doi.org/10.1140/epjc/s10052-013-2387-9

URL: http://link.springer.com/article/10.1140/epjc/s10052-013-2387-9

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Articulos(IFIBA)
Articulos de INST.DE FISICA DE BUENOS AIRES

Articulos(OCA CIUDAD UNIVERSITARIA)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA

Citación

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

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