CMS constraints on the Higgs boson width from off-shell production and decay to Z-boson pairs
(2016) Nuclear and Particle Physics Proceedings — Vol. 273-275, p. 771-774 (2016)
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- Abstract
- We present the constraints set by the CMS collaboration on the total width of the recently discovered Higgs boson, ΓH , using its relative on-shell and off-shell production and decay rates to a pair of Z bosons. The analysis is based on the data collected by the CMS experiment at the LHC in 2011 and 2012, corresponding to integrated luminosities of 5.1 fb −1 at a centre-of-mass energy s=7 TeV and 19.7 fb −1 at s=8 TeV . An upper limit on the Higgs boson width of ΓH<22 MeV at a 95% confidence level was set using the ZZ→4ℓ and 2l2ν final states. This bound corresponds to 5.4 times the expected value in the standard model at the measured mass of mH=125.6 GeV
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Quertenmont, L. (2016). CMS constraints on the Higgs boson width from off-shell production and decay to Z-boson pairs. Nuclear and Particle Physics Proceedings, 273-275, 771-774. https://doi.org/10.1016/j.nuclphysbps.2015.09.118 (Original work published 2016)