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Search for dark matter and unparticles in events with a Z boson and missing transverse momentum in proton-proton collisions at $ \sqrt{s}=13 $ TeV

2017-03-10Journal article Open access
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dc.contributor.authorCMS collaboration (2244 authors)
dc.contributor.authorNayak, Aruna
dc.contributor.authorBargassa, Pedrame
dc.contributor.authorBeirão Da Cruz E Silva, Cristóvão
dc.contributor.authorCalpas, Betty
dc.contributor.authorDi Francesco, Agostino
dc.contributor.authorFaccioli, Pietro
dc.contributor.authorFerreira Parracho, Pedro Guilherme
dc.contributor.authorGallinaro, Michele
dc.contributor.authorHollar, Jonathan
dc.contributor.authorLeonardo, Nuno
dc.contributor.authorLloret Iglesias, Lara
dc.contributor.authorRodrigues Antunes, Joao
dc.contributor.authorSeixas, Joao
dc.contributor.authorToldaiev, Oleksii
dc.contributor.authorVadruccio, Daniele
dc.contributor.authorVarela, Joao
dc.contributor.authorVischia, Pietro
dc.contributor.authorDavid Tinoco Mendes, Andre
dc.contributor.authorSilva, Pedro
dc.contributor.authorMusella, Pasquale
dc.contributor.authorPela, Joao
dc.date.accessioned2019-02-04T12:09:28Z
dc.date.available2019-02-04T12:09:28Z
dc.date.issued2017-03-10
dc.date.updated2019-02-04T12:09:28Z
dc.description.abstractA search for dark matter and unparticle production at the LHC has been performed using events containing two charged leptons (electrons or muons), consistent with the decay of a Z boson, and large missing transverse momentum. This study is based on data collected with the CMS detector in 2015, corresponding to an integrated luminosity of 2.3 fb$^{−1}$ of proton-proton collisions at the LHC, at a center-of-mass energy of 13 TeV. No excess over the standard model expectation is observed. Compared to previous searches in this topology, which exclusively relied on effective field theories, the results are interpreted in terms of a simplified model of dark matter production for both vector and axial vector couplings between a mediator and dark matter particles. The first study of this class of models using CMS data at $ \sqrt{s}=13 $ TeV is presented. Additionally, effective field theories of dark matter and unparticle production are used to interpret the data.
dc.description.versionPeer Reviewed
dc.identifierJHEP 1709 (2017) 106; DOI 10.1007/JHEP03(2017)061, 10.1007/JHEP09(2017)106, 10.1007/JHEP01(2018)056
dc.identifier.urihttp://dx.doi.org/10.1007/JHEP03(2017)061, 10.1007/JHEP09(2017)106, 10.1007/JHEP01(2018)056
dc.identifier.urihttp://hdl.handle.net/10400.26/27269
dc.language.isoeng
dc.titleSearch for dark matter and unparticles in events with a Z boson and missing transverse momentum in proton-proton collisions at $ \sqrt{s}=13 $ TeV
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspt
rcaap.typearticle

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