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Search for resonant and nonresonant new phenomena in high-mass dilepton final states at √s = 13 TeV

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dc.contributor.author CMS Collaboration en_US
dc.contributor.author Sirunyan, A. M. en_US
dc.contributor.author DUBE, SOURABH en_US
dc.contributor.author KANSAL, B. en_US
dc.contributor.author PANDEY, S. en_US
dc.contributor.author RANE, A. en_US
dc.contributor.author RASTOGI, A. en_US
dc.contributor.author SHARMA, SEEMA et al. en_US
dc.date.accessioned 2021-08-20T11:41:35Z
dc.date.available 2021-08-20T11:41:35Z
dc.date.issued 2021-07 en_US
dc.identifier.citation Journal of High Energy Physics, 2021(7), 208. en_US
dc.identifier.issn 1029-8479 en_US
dc.identifier.uri http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/6166
dc.identifier.uri https://doi.org/10.1007/JHEP07(2021)208 en_US
dc.description.abstract A search is presented for physics beyond the standard model (SM) using electron or muon pairs with high invariant mass. A data set of proton-proton collisions collected by the CMS experiment at the LHC at s√ = 13 TeV from 2016 to 2018 corresponding to a total integrated luminosity of up to 140 fb−1 is analyzed. No significant deviation is observed with respect to the SM background expectations. Upper limits are presented on the ratio of the product of the production cross section and the branching fraction to dileptons of a new narrow resonance to that of the Z boson. These provide the most stringent lower limits to date on the masses for various spin-1 particles, spin-2 gravitons in the Randall-Sundrum model, as well as spin-1 mediators between the SM and dark matter particles. Lower limits on the ultraviolet cutoff parameter are set both for four-fermion contact interactions and for the Arkani-Hamed, Dimopoulos, and Dvali model with large extra dimensions. Lepton flavor universality is tested at the TeV scale for the first time by comparing the dimuon and dielectron mass spectra. No significant deviation from the SM expectation of unity is observed. en_US
dc.language.iso en en_US
dc.publisher Springer Nature en_US
dc.subject Beyond Standard Model en_US
dc.subject Hadron-Hadron scattering (experiments) en_US
dc.subject Lepton production en_US
dc.subject Particle and resonance production en_US
dc.subject 2021-AUG-WEEK3 en_US
dc.subject TOC-AUG-2021 en_US
dc.subject 2021 en_US
dc.title Search for resonant and nonresonant new phenomena in high-mass dilepton final states at √s = 13 TeV en_US
dc.type Article en_US
dc.contributor.department Dept. of Physics en_US
dc.identifier.sourcetitle Journal of High Energy Physics en_US
dc.publication.originofpublisher Foreign en_US


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