A complete O (α 2S ) calculation of the signal–background interference for the Higgs diphoton decay channel
A complete O (α 2S ) calculation of the signal–background interference for the Higgs diphoton decay channel
复制标题
希格斯双光子衰变通道信号-背景干扰的完整 O (α 2S ) 计算
DOI:
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复制
发表时间:
2013
期刊:
影响因子:
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通讯作者:
G. Sborlini
中科院分区:
文献类型:
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作者:
D. Florian;N. Fidanza;R. Hernández;J. Mazzitelli;Yamila Rotstein Habarnau;G. Sborlini
We present the full O (α 2S ) 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 q ¯ q 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).