Search for electroweak production of charginos and neutralinos at √s = 13 TeV in final states containing hadronic decays of WW, WZ, or WH and missing transverse momentum
This Letter presents a search for direct production of charginos and neutralinos via electroweak interactions. The results are based on data from proton-proton collisions at a center-of-mass energy of 13 TeV collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 137...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2023 |
| País: | Brasil |
| Institución: | Universidade Federal do Rio Grande do Sul (UFRGS) |
| Repositorio: | Repositório Institucional da UFRGS |
| Idioma: | inglés |
| OAI Identifier: | oai:www.lume.ufrgs.br:10183/265068 |
| Acceso en línea: | http://hdl.handle.net/10183/265068 |
| Access Level: | acceso abierto |
| Palabra clave: | Aceleradores de partículas Colisões proton-proton Bosons CMS Gaugino Electroweakino Supersymmetry |
| Sumario: | This Letter presents a search for direct production of charginos and neutralinos via electroweak interactions. The results are based on data from proton-proton collisions at a center-of-mass energy of 13 TeV collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb−1. The search considers final states with large missing transverse momentum and pairs of hadronically decaying bosons WW, WZ, and WH, where H is the Higgs boson. These bosons are identified using novel algorithms. No significant excess of events is observed relative to the expectations from the standard model. Limits at the 95% confidence level are placed on the cross section for production of mass-degenerate wino-like supersymmetric particles χ± 1 and χ0 2, and mass-degenerate higgsino-like supersymmetric particles χ± 1 , χ0 2, and χ0 3. In the limit of a nearly-massless lightest supersymmetric particle χ0 1, wino-like particles with masses up to 870 and 960 GeV are excluded in the cases of χ0 2 → Zχ0 1 and χ0 2 → Hχ0 1, respectively, and higgsino-like particles are excluded between 300 and 650 GeV. |
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