Difference: LHCHXSWGExoticDecayYR4ExtraMaterials (3 vs. 4)

Revision 42016-02-11 - AbdollahMohammadi

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Abstract

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In this study, we devise a search strategy for the exotic decay of the 125 GeV Higgs boson in the $\gamma\gamma+\MET$ final state. The studied final state comes in two different topologies: resonant and non-resonant. In the resonant case, the Higgs decays into two scalars, one being undetected and the other decaying resonantly into two photons. The non-resonant case, based on low scale SUSY breaking models, the Higgs decays into two neutralinos, each subsequently decaying into a photon and a gravitino. We estimate the sensitivity of these searches using a DELPHES detector simulation, and targeting $100$ fb$^{-1}$ of $\sqrt{s}=14$ TeV $pp$ data from the LHC.
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In this study, we devise a search strategy for the exotic decay of the 125 GeV Higgs boson in the $\gamma\gamma+MET$ final state. The studied final state comes in two different topologies: resonant and non-resonant. In the resonant case, the Higgs decays into two scalars, one being undetected and the other decaying resonantly into two photons. The non-resonant case, based on low scale SUSY breaking models, the Higgs decays into two neutralinos, each subsequently decaying into a photon and a gravitino. We estimate the sensitivity of these searches using a DELPHES detector simulation, and targeting $100$ fb$^{-1}$ of $\sqrt{s}=14$ TeV $pp$ data from the LHC.
 

Figures from ggMET

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pdf Figure 1a: Feynman diagrams for the non-resonant signal scenarios
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pdf Figure 1a: Feynman diagrams for the non-resonant signal scenarios (Based on low scale SUSY breaking models, the Higgs decays into two neutralinos, each subsequently decaying into a photon and a gravitino)
 
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pdf Figure 1a: Feynman diagrams for the resonant signal scenarios
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pdf Figure 1b: Feynman diagrams for the resonant signal scenarios (Higgs decays into two scalars, one being undetected and the other decaying resonantly into two photons)
 
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pdf Figure 1a: Efficiency
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pdf Figure 2: signal selection efficiency after triggers selection v.s. mass for different signal scenarios and types
 
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pdf Figure 1a: MT
 
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pdf Figure 1a: MET
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pdf Figure 3: Missing transverse distribution of signal and background for the gluon-gluon production mode
 
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pdf Figure 1a: deltaPhi between di photon
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pdf Figure 4: Distribution of deltaPhi between di photon for signal and background for the gluon-gluon production mode
 
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pdf Figure 1a: Photons invariant mass
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pdf Figure 5: MT distribution (MT of $\gamma\gamma+MET$, $\mu\mu$) of signal and backgrounds for the ZH production mode
 
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pdf Figure 1a: delta phi between di photon and di muons
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pdf Figure 6: Photons invariant mass distribution of signal and backgrounds for the ZH production mode
 
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pdf Figure 1a: Di muon invariant mass
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pdf Figure 7: delta phi between di photon and di muons distribution of signal and backgrounds for the ZH production mode
 
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pdf Figure 8: Di muon invariant mass distribution of signal and backgrounds for the ZH production mode
 
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pdf Figure 1a: Pt of dimuon
 
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pdf Figure 9: Pt of dimuon for signal and backgrounds for the ZH production mode
 
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pdf Figure 1a: ∆φ between Diphoton and MET
 
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pdf Figure 10: ∆φ between Diphoton and MET distribution of signal and backgrounds for the ZH production mode
 
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pdf Figure 1a: leading Photon Pt
 
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pdf Figure 11: leading Photon Pt distribution of signal and backgrounds for the ZH production mode
 
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pdf Figure 12: subleading Photon Pt distribution of signal and backgrounds for the ZH production mode
 
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pdf Figure 1a: Transverse Mass
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pdf Figure 13: Transverse Mass distribution of signal and backgrounds for the ZH production mode
 
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pdf Figure 1a: subleading Photon Pt
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pdf Figure 14: Significance plots for different trigger scenarios in the gluon fusion analysis
 
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pdf Figure 1a: Significance plots for different trigger scenarios in the gluon fusion analysis
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pdf Figure 15: Significance plots for different trigger and signal scenarios in the gluon fusion analysis
 
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pdf Figure 1a: Significance plots for different trigger scenarios in the gluon fusion analysis
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pdf Figure 16: 5σ branching ratios for the ggF channel, for resonant (in red) and non-resonant (in black) final states, using the γ + E/T trigger..
 
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pdf Figure 1a: 5σ branching ratios for the ggF channel, for resonant (in red) and non-resonant (in black) final states, using the γ + E/T trigger..

pdf Figure 1a: Branching ratios for 95% confidence level exclusion in the ZH case, resonant and non-resonant topologies, requiring at least one photon (Nγ ≥ 1, in green and blue, respectively) and at least two photons (Nγ ≥ 2 in black and red, respectively). The shaded areas correspond to a variation in systematics up to 10%
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pdf Figure 17: Branching ratios for 95% confidence level exclusion in the ZH case, resonant and non-resonant topologies, requiring at least one photon (Nγ ≥ 1, in green and blue, respectively) and at least two photons (Nγ ≥ 2 in black and red, respectively). The shaded areas correspond to a variation in systematics up to 10%
 
 
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