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.
2026
Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11384/170725
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