Measurements of the Higgs boson width and anomalous HVV couplings from on-shell and off-shell production in the four-lepton final state
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
Studies of on-shell and off-shell Higgs boson production in the four-lepton final state are presented,
using data from the CMS experiment at the LHC that correspond to an integrated luminosity of 80.2 fb−1 at
a center-of-mass energy of 13 TeV. Joint constraints are set on the Higgs boson total width and parameters
that express its anomalous couplings to two electroweak vector bosons. These results are combined with
those obtained from the data collected at center-of-mass energies of 7 and 8 TeV, corresponding to
integrated luminosities of 5.1 and 19.7 fb−1, respectively. Kinematic information from the decay particles
and the associated jets are combined using matrix element techniques to identify the production mechanism
and to increase sensitivity to the Higgs boson couplings in both production and decay. The constraints on
anomalous HVV couplings are found to be consistent with the standard model expectation in both the onshell and off-shell regions. Under the assumption of a coupling structure similar to that in the standard
model, the Higgs boson width is constrained to be 3.2þ2.8 −2.2 MeV while the expected constraint based on
simulation is 4.1þ5.0 −4.0 MeV. The constraints on the width remain similar with the inclusion of the tested
anomalous HVV interactions.
using data from the CMS experiment at the LHC that correspond to an integrated luminosity of 80.2 fb−1 at
a center-of-mass energy of 13 TeV. Joint constraints are set on the Higgs boson total width and parameters
that express its anomalous couplings to two electroweak vector bosons. These results are combined with
those obtained from the data collected at center-of-mass energies of 7 and 8 TeV, corresponding to
integrated luminosities of 5.1 and 19.7 fb−1, respectively. Kinematic information from the decay particles
and the associated jets are combined using matrix element techniques to identify the production mechanism
and to increase sensitivity to the Higgs boson couplings in both production and decay. The constraints on
anomalous HVV couplings are found to be consistent with the standard model expectation in both the onshell and off-shell regions. Under the assumption of a coupling structure similar to that in the standard
model, the Higgs boson width is constrained to be 3.2þ2.8 −2.2 MeV while the expected constraint based on
simulation is 4.1þ5.0 −4.0 MeV. The constraints on the width remain similar with the inclusion of the tested
anomalous HVV interactions.
Date Issued
2019-06-01
Date Acceptance
2019-06-01
Citation
Physical Review D, 2019, 99 (11), pp.1-33
ISSN
2470-0010
Publisher
American Physical Society
Start Page
1
End Page
33
Journal / Book Title
Physical Review D
Volume
99
Issue
11
Copyright Statement
© 2019 CERN, for the CMS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3
.
.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000471984900001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Physics, Particles & Fields
Physics
BROKEN SYMMETRIES
DECAYS
CONSTRAINTS
SEARCH
SPIN
MASS
ZZ
Publication Status
Published
Article Number
ARTN 112003
Date Publish Online
2019-06-11