A complete O(αS2) 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...
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| Autores principales: | , , , , , |
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| Formato: | Artículo publishedVersion |
| Publicado: |
2013
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_14346044_v73_n4_p1_deFlorian http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_14346044_v73_n4_p1_deFlorian_oai |
| Aporte de: |
| Sumario: | 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). © 2013 Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica. |
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