Search for narrow resonances in the b -tagged dijet mass spectrum in proton-proton collisions at √ s = 13 TeV
dc.contributor.author | Tumasyan, Armen | pt_BR |
dc.contributor.author | Silveira, Gustavo Gil da | pt_BR |
dc.contributor.author | Bernardes, César Augusto | pt_BR |
dc.contributor.author | CMS Collaboration | pt_BR |
dc.date.accessioned | 2024-01-11T03:25:43Z | pt_BR |
dc.date.issued | 2023 | pt_BR |
dc.identifier.issn | 2470-0010 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/270841 | pt_BR |
dc.description.abstract | A search is performed for narrow resonances decaying to final states of two jets, with at least one jet originating from a b quark, in proton-proton collisions at √ s = 13 TeV . The data set corresponds to an integrated luminosity of 138 fb − 1 collected with the CMS detector at the LHC. Jets originating from energetic b hadrons are identified through a b -tagging algorithm that utilizes a deep neural network or the presence of a muon inside a jet. The invariant mass spectrum of jet pairs is well described by a smooth parametrization and no evidence for the production of new particles is observed. Upper limits on the production cross section are set for excited b quarks and other resonances decaying to dijet final states containing b quarks. These limits exclude at 95% confidence level models of Z ′ bosons with masses from 1.8 TeV to 2.4 TeV and of excited b quarks with masses from 1.8 TeV to 4.0 TeV. This is the most stringent exclusion of excited b quarks to date. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physical review. D, Particles, fields, gravitation, and cosmology. College Park. Vol. 108, no. 1 (July 2023), 012009, 22 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Colisões proton-proton | pt_BR |
dc.subject | Aceleradores de partículas | pt_BR |
dc.subject | Quarks | pt_BR |
dc.title | Search for narrow resonances in the b -tagged dijet mass spectrum in proton-proton collisions at √ s = 13 TeV | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001189801 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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