Handbook of LHC Higgs Cross Sections: 4. Deciphering the Nature of the Higgs Sector

Florian, Daniel de

doi:10.2172/1345634

Cited by 569 publications

(1,008 citation statements)

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“…These uncertainties are estimated by varying the factorization and renormalization scales up and down from their nominal values by a factor of 2, recalculating the cross section in each case, and taking the largest deviation from the nominal cross section as the uncertainty. The uncertainty related to the renormalization and factorization scales is 0.6%-11% for signal and 2.5%-6.0% for the SM Higgs-boson processes [34]. For the three signal processes, the effect of PDF þ α S uncertainties including acceptance and normalization is 11%-25%.…”

Section: Systematic Uncertaintiesmentioning

confidence: 99%

“…The cross sections [34] of the SM Higgs-boson processes are calculated at next-to-leading order (NLO) in electroweak theory and next-to-next-to-leading order (NNLO) in QCD for VBF, Zh and Wh samples and next-tonext-to-next-to-leading order plus next-to-next-to-leading logarithm (N 3 LO þ NNLL) in QCD for the ggF sample. The SM Higgs-boson mass is set to 125.09 GeV [35] and its branching fraction decaying into two photons is 0.227% [34]. Samples for the Z 0 B and Z 0 -2HDM models are normalized using the LO cross sections predicted by MADGRAPH_AMC@NLO 2.2.3.…”

Section: Data and Simulation Samplesmentioning

confidence: 99%

“…For the three signal processes, the effect of PDF þ α S uncertainties including acceptance and normalization is 11%-25%. It is estimated using the recommendations of PDF4LHC [34]. Both intra-PDF and inter-PDF uncertainties are extracted.…”

Section: Systematic Uncertaintiesmentioning

confidence: 99%

“…In the case of the SM Higgs-boson processes, the effect of α S and the choice of PDFs range from 2% to 6%, which are taken from Ref. [34]. The uncertainty in the branching fraction (B) of h → γγ is 1.73% [34].…”

Section: Systematic Uncertaintiesmentioning

confidence: 99%

“…[34]. The uncertainty in the branching fraction (B) of h → γγ is 1.73% [34]. The uncertainty in the multiple parton-parton interactions is estimated by switching them on and off in PYTHIA 8.186 in the production of the ggF SM Higgs-boson sample.…”

Section: Systematic Uncertaintiesmentioning

confidence: 99%

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Search for dark matter in association with a Higgs boson decaying to two photons at s=13 TeV with the ATLAS detector

Aaboud¹,

Aad²,

Abbott³

et al. 2017

Phys. Rev. D

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A search for dark matter in association with a Higgs boson decaying to two photons is presented. This study is based on data collected with the ATLAS detector, corresponding to an integrated luminosity of 36.1 fb −1 of proton-proton collisions at the LHC at a center-of-mass energy of 13 TeV in 2015 and 2016. No significant excess over the expected background is observed. Upper limits at 95% confidence level are set on the visible cross section for beyond the Standard Model physics processes, and the production cross section times branching fraction of the Standard Model Higgs boson decaying into two photons in association with missing transverse momentum in three different benchmark models. Limits at 95% confidence level are also set on the observed signal in two-dimensional mass planes. Additionally, the results are interpreted in terms of 90% confidence-level limits on the dark-matternucleon scattering cross section, as a function of the dark-matter particle mass, for a spin-independent scenario.

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Section: Systematic Uncertaintiesmentioning

confidence: 99%

Section: Data and Simulation Samplesmentioning

confidence: 99%

Section: Systematic Uncertaintiesmentioning

confidence: 99%

Section: Systematic Uncertaintiesmentioning

confidence: 99%

Section: Systematic Uncertaintiesmentioning

confidence: 99%

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