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@ARTICLE{Tumasyan:600098,
author = {Tumasyan, Armen and others},
collaboration = {{CMS Collaboration}},
title = {{S}earch for {Z}′ bosons decaying to pairs of heavy
{M}ajorana neutrinos in proton-proton collisions at $
\sqrt{s} $ = 13 {T}e{V}},
journal = {Journal of high energy physics},
volume = {11},
number = {11},
issn = {1126-6708},
address = {[Trieste]},
publisher = {SISSA},
reportid = {PUBDB-2023-07751, arXiv:2307.06959. CMS-EXO-20-006.
CERN-EP-2023-115},
pages = {181},
year = {2023},
abstract = {A search for the production of pairs of heavy Majorana
neutrinos (N$_{ℓ}$) 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 $ \sqrt{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 N$_{ℓ}$, as functions of N$_{ℓ}$ and Z′ boson
masses ($ {m}_{{\textrm{N}}_{\ell }} $ and $
{m}_{{\textrm{Z}}^{\prime }} $, respectively) for $
{m}_{{\textrm{Z}}^{\prime }} $ from 0.4 to 4.6 TeV and $
{m}_{{\textrm{N}}_{\ell }} $ from 0.1 TeV to $
{m}_{{\textrm{Z}}^{\prime }} $/2. In the theoretical
framework of a left-right symmetric model, exclusion bounds
in the $ {m}_{{\textrm{N}}_{\ell }} $-$
{m}_{{\textrm{Z}}^{\prime }} $ plane are presented in both
the electron and muon channels. The observed upper limit on
$ {m}_{{\textrm{Z}}^{\prime }} $ reaches up to 4.42 TeV.
These are the most restrictive limits to date on the mass of
N$_{ℓ}$ as a function of the Z′ boson mass.[graphic not
available: see fulltext]},
keywords = {p p: colliding beams (INSPIRE) / Z': mass (INSPIRE) / p p:
scattering (INSPIRE) / neutrino: Majorana (INSPIRE) /
neutrino: pair production (INSPIRE) / Z': leptonic decay
(INSPIRE) / Z': hadroproduction (INSPIRE) / neutrino: heavy
(INSPIRE) / left-right (INSPIRE) / muon (INSPIRE) / channel
cross section: branching ratio: upper limit (INSPIRE) / mass
dependence (INSPIRE) / electron (INSPIRE) / dilepton: mass
spectrum (INSPIRE) / CERN LHC Coll (INSPIRE) / background
(INSPIRE) / signature (INSPIRE) / dijet: mass spectrum
(INSPIRE) / CMS (INSPIRE) / mass: upper limit (INSPIRE) /
experimental results (INSPIRE) / 13000 GeV-cms (INSPIRE) /
Beyond Standard Model (autogen) / Hadron-Hadron Scattering
(autogen)},
cin = {CMS},
ddc = {530},
cid = {I:(DE-H253)CMS-20120731},
pnm = {611 - Fundamental Particles and Forces (POF4-611) /
HIDSS-0002 - DASHH: Data Science in Hamburg - Helmholtz
Graduate School for the Structure of Matter
$(2019_IVF-HIDSS-0002)$},
pid = {G:(DE-HGF)POF4-611 / $G:(DE-HGF)2019_IVF-HIDSS-0002$},
experiment = {EXP:(DE-H253)LHC-Exp-CMS-20150101},
typ = {PUB:(DE-HGF)16},
eprint = {2307.06959},
howpublished = {arXiv:2307.06959},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2307.06959;\%\%$},
UT = {WOS:001116685900001},
doi = {10.1007/JHEP11(2023)181},
url = {https://bib-pubdb1.desy.de/record/600098},
}