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.

Hayrapetyan, A., Makarenko, V., Tumasyan, A., Adam, W., Benato, L., Bergauer, T., et al. (2026). Measurement of the Higgs boson total decay width using the H → WW → eνμν decay channel in proton-proton collisions at √s=13 TeV. PHYSICAL REVIEW D, 113(9) [10.1103/rny9-zby1].

Measurement of the Higgs boson total decay width using the H → WW → eνμν decay channel in proton-proton collisions at √s=13 TeV

Ciocci, M. A.;Turini, N.;
2026-01-01

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
Hayrapetyan, A., Makarenko, V., Tumasyan, A., Adam, W., Benato, L., Bergauer, T., et al. (2026). Measurement of the Higgs boson total decay width using the H → WW → eνμν decay channel in proton-proton collisions at √s=13 TeV. PHYSICAL REVIEW D, 113(9) [10.1103/rny9-zby1].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/1324430
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