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## Search for Z? resonances using leptonic and hadronic final states in proton-proton collisions at ?s=13 TeV

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 Z? 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.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

Fuente: Journal of High Energy Physics, Vol. 2018, Num. 09, Art. Num. 148

Editorial: Springer Verlag

Fecha de publicación: 26/09/2018

Nº de páginas: 43

Tipo de publicación: Artículo de Revista

ISSN: 1126-6708,1029-8479

Url de la publicación: https://doi.org/10.1007/JHEP09(2018)148

### Autores/as

SIRUNYAN, A. M.

MARCOS FERNANDEZ GARCIA

JUAN GARCIA FERRERO

MARIA AMPARO LOPEZ VIRTO