LHC Seminar

Higgs boson width from off-shell production and decay to ZZ

Name: Higgs boson width from off-shell production and decay to ZZ
Start: 2014-04-15T11:00:00+02:00
End: 2014-04-15T12:00:00+02:00
Location: CERN

by Jian Wang (Universite Libre de Bruxelles (BE))

Tuesday 15 Apr 2014, 11:00 → 12:00 Europe/Zurich

500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400

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Description

Constraints on the total Higgs boson width, Gamma_H, are presented using off-shell production and decay to ZZ in the 4l and 2l2nu final states. The analysis is based on data collected in 2012 by the CMS experiment at the LHC, corresponding to an integrated luminosity of L = 19.7/fb at a centre-of-mass energy of 8 TeV. The combined analysis of the 4l and 2l2nu events at high mass with the 4l measurement of the Higgs boson peak at 125.6 GeV leads to an upper limit on the Higgs boson width of Gamma_H < 4.2 x Gamma_H(SM) at the 95% confidence level, assuming Gamma_H(SM) = 4.15 MeV. This result considerably improves over previous experimental constraints from direct measurements at the Higgs resonance peak.

Organised by

M. Mangano, C. Lourenco, G. Unal......................... Tea and Coffee will be served at 10h30

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Higgs boson width from off-shell production and decay to ZZ

by Jian Wang (Universite Libre de Bruxelles (BE))

500/1-001 - Main Auditorium

CERN

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