@article{33f27ae152fc475286942eb8300d497d,
title = "Search for Z′ bosons decaying to pairs of heavy Majorana neutrinos in proton-proton collisions at √s = 13 TeV",
abstract = "A search for the production of pairs of heavy Majorana neutrinos (Nℓ) from the decays of Z′ bosons is performed using the CMS detector at the LHC. The data were collected in proton-proton collisions at a center-of-mass energy of s = 13 TeV, with an integrated luminosity of 138 fb−1. The signature for the search is an excess in the invariant mass distribution of the final-state objects, two same-flavor leptons (e or μ) and at least two jets. No significant excess of events beyond the expected background is observed. Upper limits at 95% confidence level are set on the product of the Z′ production cross section and its branching fraction to a pair of Nℓ, as functions of Nℓ and Z′ boson masses (mNℓ and mZ′, respectively) for mZ′ from 0.4 to 4.6 TeV and mNℓ from 0.1 TeV to mZ′/2. In the theoretical framework of a left-right symmetric model, exclusion bounds in the mNℓ-mZ′ plane are presented in both the electron and muon channels. The observed upper limit on mZ′ reaches up to 4.42 TeV. These are the most restrictive limits to date on the mass of Nℓ as a function of the Z′ boson mass.",
keywords = "Beyond Standard Model, Hadron-Hadron Scattering",
author = "{The CMS collaboration
[email protected]} and A. Tumasyan and W. Adam and Andrejkovic, {J. W.} and T. Bergauer and S. Chatterjee and K. Damanakis and M. Dragicevic and {Escalante Del Valle}, A. and Hussain, {P. S.} and M. Jeitler and N. Krammer and L. Lechner and D. Liko and I. Mikulec and P. Paulitsch and Pitters, {F. M.} and J. Schieck and R. Sch{\"o}fbeck and D. Schwarz and S. Templ and W. Waltenberger and Wulz, {C. E.} and Darwish, {M. R.} and T. Janssen and T. Kello and {Rejeb Sfar}, H. and {Van Mechelen}, P. and Bols, {E. S.} and J. D{\textquoteright}Hondt and {De Moor}, A. and M. Delcourt and {El Faham}, H. and S. Lowette and S. Moortgat and A. Morton and D. M{\"u}ller and Sahasransu, {A. R.} and S. Tavernier and {Van Doninck}, W. and D. Vannerom and B. Clerbaux and {De Lentdecker}, G. and L. Favart and D. Hohov and J. Jaramillo and K. Lee and M. Mahdavikhorrami and I. Makarenko and Chia-Ming Kuo and W. Lin",
note = "Publisher Copyright: {\textcopyright} The Author(s) 2023.",
year = "2023",
month = nov,
doi = "10.1007/JHEP11(2023)181",
language = "???core.languages.en_GB???",
volume = "2023",
journal = "Journal of High Energy Physics",
issn = "1126-6708",
number = "11",
}