The Higgs boson (H) decay width is determined from the ratio of off- and on-shell production of H -> WW -> e nu mu nu using proton-proton collision data corresponding to an integrated luminosity of 138 fb- 1 collected at root s =13 TeV by the CMS experiment at the Large Hadron Collider. The off-shell signal strength is measured as mu(off-shell) = 1.2(-0.7)(+0.8). The Higgs boson total decay width is Gamma(H) = 3.9(-2.2)(+2.7) MeV, in agreement with the standard model prediction. The uncertainty in this result represents a factor of 3 improvement over the previous CMS result in this decay channel.
Measurement of the Higgs boson total decay width using the H → WW → eνμν decay channel in proton-proton collisions at √s = 13 TeV
Alexe, C.;Bruschini, D.;Ligabue, F.;
2026
Abstract
The Higgs boson (H) decay width is determined from the ratio of off- and on-shell production of H -> WW -> e nu mu nu using proton-proton collision data corresponding to an integrated luminosity of 138 fb- 1 collected at root s =13 TeV by the CMS experiment at the Large Hadron Collider. The off-shell signal strength is measured as mu(off-shell) = 1.2(-0.7)(+0.8). The Higgs boson total decay width is Gamma(H) = 3.9(-2.2)(+2.7) MeV, in agreement with the standard model prediction. The uncertainty in this result represents a factor of 3 improvement over the previous CMS result in this decay channel.File in questo prodotto:
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