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Search for Zγ resonances using leptonic and hadronic final states in proton-proton collisions at s√=13 TeV

Search for Zγ resonances using leptonic and hadronic final states in proton-proton collisions at s√=13 TeV
Search for Zγ resonances using leptonic and hadronic final states in proton-proton collisions at s√=13 TeV
A search is presented for resonances decaying to a Z boson and a photon. The analysis is based on data from proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1, and collected with the CMS detector at the LHC in 2016. Two decay modes of the Z boson are investigated. In the leptonic channels, the Z boson candidates are reconstructed using electron or muon pairs. In the hadronic channels, they are identified using a large-radius jet, containing either light-quark or b quark decay products of the Z boson, via jet substructure and advanced b quark tagging techniques. The results from these channels are combined and interpreted in terms of upper limits on the product of the production cross section and the branching fraction to Zγ for narrow and broad spin-0 resonances with masses between 0.35 and 4.0 TeV, providing thereby the most stringent limits on such resonances.
1029-8479
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
The CMS Collaboration
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3

Belyaev, Alexander , The CMS Collaboration (2018) Search for Zγ resonances using leptonic and hadronic final states in proton-proton collisions at s√=13 TeV. Journal of High Energy Physics, 2018 (09), [148]. (doi:10.1007/JHEP09(2018)148).

Record type: Article

Abstract

A search is presented for resonances decaying to a Z boson and a photon. The analysis is based on data from proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1, and collected with the CMS detector at the LHC in 2016. Two decay modes of the Z boson are investigated. In the leptonic channels, the Z boson candidates are reconstructed using electron or muon pairs. In the hadronic channels, they are identified using a large-radius jet, containing either light-quark or b quark decay products of the Z boson, via jet substructure and advanced b quark tagging techniques. The results from these channels are combined and interpreted in terms of upper limits on the product of the production cross section and the branching fraction to Zγ for narrow and broad spin-0 resonances with masses between 0.35 and 4.0 TeV, providing thereby the most stringent limits on such resonances.

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Accepted/In Press date: 10 September 2018
e-pub ahead of print date: 26 September 2018
Published date: September 2018

Identifiers

Local EPrints ID: 425408
URI: http://eprints.soton.ac.uk/id/eprint/425408
ISSN: 1029-8479
PURE UUID: a8ca7318-1260-4c29-9e7d-a5aefefc384d
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

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Date deposited: 18 Oct 2018 16:30
Last modified: 17 Dec 2019 01:44

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