2018
DOI: 10.1016/j.physletb.2018.09.048
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Constraints on off-shell Higgs boson production and the Higgs boson total width in ZZ → 4ℓ and ZZ → 2ℓ2ν final states with the ATLAS detector

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Cited by 83 publications
(79 citation statements)
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“…to parity [101]. resonance [102,103], which is not applicable in this case. The cross section limits from inclusive multilepton searches, mostly performed in the SUSY context with large missing transverse energy [104,105], turn out to be weaker than the LEP constraints derived above.…”
Section: Lhc Constraintsmentioning
confidence: 99%
See 1 more Smart Citation
“…to parity [101]. resonance [102,103], which is not applicable in this case. The cross section limits from inclusive multilepton searches, mostly performed in the SUSY context with large missing transverse energy [104,105], turn out to be weaker than the LEP constraints derived above.…”
Section: Lhc Constraintsmentioning
confidence: 99%
“…In addition to the modified signal strengths, the total Higgs width is enhanced due to the new decay modes. Both ATLAS [103] and CMS [136] collaborations have put 95% CL upper limits on the Higgs boson total width Γ h from measurement of off-shell production in the ZZ → 4 channel. Given the SM expectation Γ SM h ∼ 4.1 MeV, we use the CMS upper limit on Γ h < 9.16 MeV [136] to demand that the new contribution (mostly from h → h ± h ∓ , because the h → γγ branching fraction is much smaller) must be less than 5.1 MeV.…”
Section: Constraints From Higgs Precision Datamentioning
confidence: 99%
“…This makes W + W − production ideal to test the gauge symmetry structure of EW interactions and the mechanism of EW symmetry breaking in the Standard Model (SM). It therefore provides an excellent probe of new-physics phenomena in indirect beyond-SM (BSM) searches [1][2][3][4][5] 1 , and it was instrumental for the Higgs boson discovery [15,16] as well as measurements of its properties [17][18][19][20][21][22][23][24][25][26][27].…”
mentioning
confidence: 99%
“…Experimental searches exist on specific cases of NP in the Higgs sector, through ZZ final states, making full use of the kinematics in the final states for heavy resonance searches [25,27], and indirect bounds on Higgs total width from off-shell Higgs signal measurement [28][29][30]. For a general search to find hints in a Higgs sector, however, we cannot rely on those dedicated analyses which require model-specific information on a NP model.…”
Section: Introductionmentioning
confidence: 99%