Search for high-mass resonances in dilepton final states in proton-proton collisions at √s = 13 TeV
dc.contributor.author | CMS Collaboration | |
dc.contributor.author | Buccilli, A. | |
dc.contributor.author | Cooper, S.I. | |
dc.contributor.author | Henderson, C. | |
dc.contributor.author | Rumerio, P. | |
dc.contributor.author | West, C. | |
dc.contributor.other | University of Alabama Tuscaloosa | |
dc.date.accessioned | 2022-08-02T15:20:02Z | |
dc.date.available | 2022-08-02T15:20:02Z | |
dc.date.issued | 2018 | |
dc.description.abstract | A search is presented for new high-mass resonances decaying into electron or muon pairs. The search uses proton-proton collision data at a centre-of-mass energy of 13 TeV collected by the CMS experiment at the LHC in 2016, corresponding to an integrated luminosity of 36 fb⁻¹. Observations are in agreement with standard model expectations. Upper limits on the product of a new resonance production cross section and branching fraction to dileptons are calculated in a model-independent manner. This permits the interpretation of the limits in models predicting a narrow dielectron or dimuon resonance. A scan of different intrinsic width hypotheses is performed. Limits are set on the masses of various hypothetical particles. For the \({Z}_{SSM}^{\prime }\left({Z}_{{}^{\psi }}^{\prime }\right)\) particle, which arises in the sequential standard model (superstring-inspired model), a lower mass limit of 4.50 (3.90) TeV is set at 95% confidence level. The lightest Kaluza-Klein graviton arising in the Randall-Sundrum model of extra dimensions, with coupling parameters \(k/\overline{M}_{Pl}\) of 0.01, 0.05, and 0.10, is excluded at 95% confidence level below 2.10, 3.65, and 4.25 TeV, respectively. In a simplified model of dark matter production via a vector or axial vector mediator, limits at 95% confidence level are obtained on the masses of the dark matter particle and its mediator. | en_US |
dc.format.mimetype | application/pdf | |
dc.identifier.citation | Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., Brandstetter, J., Brondolin, E., Dragicevic, M., Erö, J., Escalante Del Valle, A., Flechl, M., Friedl, M., Frühwirth, R., Ghete, V. M., Grossmann, J., Hrubec, J., Jeitler, M., … Woods, N. (2018). Search for high-mass resonances in dilepton final states in proton-proton collisions at $ \sqrt{s}=13 $ TeV. In Journal of High Energy Physics (Vol. 2018, Issue 6). Springer Science and Business Media LLC. https://doi.org/10.1007/jhep06(2018)120 | |
dc.identifier.doi | 10.1007/JHEP06(2018)120 | |
dc.identifier.uri | https://ir.ua.edu/handle/123456789/9038 | |
dc.language | English | |
dc.language.iso | en_US | |
dc.rights.uri | https://creativecommons.org/licenses/by/3.0 | |
dc.subject | Beyond Standard Model | |
dc.subject | Hadron-Hadron scattering (experiments) | |
dc.subject | Lepton production | |
dc.subject | Particle and resonance production | |
dc.title | Search for high-mass resonances in dilepton final states in proton-proton collisions at √s = 13 TeV | en_US |
dc.type | text |
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