IFIBA 22255
INSTITUTO DE FISICA DE BUENOS AIRES
Unidad Ejecutora - UE
artículos
Título:
A complete O(alpha_S^2) calculation of the signal-background interference for the Higgs diphoton decay channel
Autor/es:
DANIEL DE FLORIAN; NERINA FIDANZA; ROGER HERNANDEZ-PINTO; JAVIER MAZZITELLI; YAMILA ROTSTEIN HABARNAU; GERMÁN SBORLINI
Revista:
EUROPEAN PHYSICAL JOURNAL C - PARTICLES AND FIELDS
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2013 vol. 73 p. 1 - 5
ISSN:
1434-6044
Resumen:
We present the full O(α2S) 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 qqˉ 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).
