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EFFECT FROM THE GLUON-FUSION SIGNAL AND BACKGROUND INTERFERENCE FOR HIGGS DECAYING TO γγ ANALYSIS AT THE LHC.
- Source :
-
Modern Physics Letters A . Jun2013, Vol. 28 Issue 18, p-1. 12p. 1 Diagram, 3 Charts, 4 Graphs. - Publication Year :
- 2013
-
Abstract
- We calculate the destructive interference factors between the Higgs decay H→γγ produced in gluon-fusion and the Standard Model (SM) continuum gg→γγ process, as a function of the scattering angle in the center-of-mass frame of the final two photons. The interference factors are studied with the selections based on the acceptance criteria of the ATLAS and CMS H→γγ searches at the LHC. The result shows that the destructive interference is only at an order of 2.5% for the SM Higgs analysis at the LHC. The factors are almost the same for the same Higgs mass hypothesis but with different proton-proton collisions at , 8 TeV, 13 TeV and 14 TeV. The destructive interference is far below the present uncertainty on the total cross-section prediction of Higgs, which is about 15% used at the LHC. A destructive interference factor of -2.5% is suggested to be used in the H→γγ analysis at the LHC, due to the effect from the interference for this decay channel. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02177323
- Volume :
- 28
- Issue :
- 18
- Database :
- Academic Search Index
- Journal :
- Modern Physics Letters A
- Publication Type :
- Academic Journal
- Accession number :
- 88230888
- Full Text :
- https://doi.org/10.1142/S0217732313500818