Search for a new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at root s=13 TeV
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
A search for a new scalar resonance decaying to a pair of Z bosons is performed in the mass range from 130 GeV to 3 TeV, and for various width scenarios. The analysis is based on proton-proton collisions recorded by the CMS experiment at the LHC in 2016, corresponding to an integrated luminosity of 35.9 fb−1 at a center-of-mass energy of 13 TeV. The Z boson pair decays are reconstructed using the 4ℓ, 2ℓ2q, and 2ℓ2ν final states, where ℓ = e or μ. Both gluon fusion and electroweak production of the scalar resonance are considered, with a free parameter describing their relative cross sections. A dedicated categorization of events, based on the kinematic properties of associated jets, and matrix element techniques are employed for an optimal signal and background separation. A description of the interference between signal and background amplitudes for a resonance of an arbitrary width is included. No significant excess of events with respect to the standard model expectation is observed and limits are set on the product of the cross section for a new scalar boson and the branching fraction for its decay to ZZ for a large range of masses and widths.
Date Issued
2018-06-25
Date Acceptance
2018-06-11
Citation
JOURNAL OF HIGH ENERGY PHYSICS, 2018, 2018 (6)
ISSN
1029-8479
Publisher
SPRINGER
Journal / Book Title
JOURNAL OF HIGH ENERGY PHYSICS
Volume
2018
Issue
6
Copyright Statement
© 2018 The Author(s). Open Access.
This article is distributed under the terms of the Creative Commons
Attribution License (
CC-BY 4.0 https://creativecommons.org/licenses/by/4.0/), which permits any use, distribution and reproduction in
any medium, provided the original author(s) and source are credited.
This article is distributed under the terms of the Creative Commons
Attribution License (
CC-BY 4.0 https://creativecommons.org/licenses/by/4.0/), which permits any use, distribution and reproduction in
any medium, provided the original author(s) and source are credited.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000437350800003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Physics, Particles & Fields
Physics
Hadron-Hadron scattering (experiments)
Higgs physics
HIGGS-BOSON
MASSLESS PARTICLES
BROKEN SYMMETRIES
NNLO QCD
LHC
COLLIDERS
MODEL
Publication Status
Published
Article Number
ARTN 127
Date Publish Online
2018-06-25