dc.contributor.author | Aad, G. | |
dc.contributor.author | ATLAS Collaboration | |
dc.contributor.author | Álvarez Estévez, Manuel | |
dc.contributor.author | Barreiro Alonso, Fernando | |
dc.contributor.author | Calvente López, Sergio | |
dc.contributor.author | Camarero Muñoz, Daniel | |
dc.contributor.author | Peso Malagón, José del | |
dc.contributor.author | Glasman Kuguel, Claudia Beatriz | |
dc.contributor.author | Terrón Cuadrado, Juan | |
dc.contributor.other | UAM. Departamento de Física Teórica | es_ES |
dc.date.accessioned | 2022-10-26T11:02:36Z | |
dc.date.available | 2022-10-26T11:02:36Z | |
dc.date.issued | 2020-08-13 | |
dc.identifier.citation | European Physical Journal C 80.8 (2020): 737 | es_ES |
dc.identifier.issn | 1434-6044 (print) | es_ES |
dc.identifier.issn | 1434-6052 (online) | es_ES |
dc.identifier.uri | http://hdl.handle.net/10486/704753 | |
dc.description | Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM | es_ES |
dc.description.abstract | A search for direct pair production of scalar partners of the top quark (top squarks or scalar third-generation up-type leptoquarks) in the all-hadronic tt¯ plus missing transverse momentum final state is presented. The analysis of 139 fb - 1 of √s = 13 TeV proton–proton collision data collected using the ATLAS detector at the LHC yields no significant excess over the Standard Model background expectation. To interpret the results, a supersymmetric model is used where the top squark decays via t~→t(∗)χ~10, with t(∗) denoting an on-shell (off-shell) top quark and χ~10 the lightest neutralino. Three specific event selections are optimised for the following scenarios. In the scenario where mt~> mt + mχ~10, top squark masses are excluded in the range 400–1250 GeV for χ~10 masses below 200 GeV at 95% confidence level. In the situation where mt~∼mt+mχ~10, top squark masses in the range 300–630 GeV are excluded, while in the case where mt~ < mW + mb + mχ~10 (with mt~-mχ~10 ≥ 5 GeV), considered for the first time in an ATLAS all-hadronic search, top squark masses in the range 300–660 GeV are excluded. Limits are also set for scalar third-generation up-type leptoquarks, excluding leptoquarks with masses below 1240 GeV when considering only leptoquark decays into a top quark and a neutrino | es_ES |
dc.format.extent | 44 pag. | es_ES |
dc.format.mimetype | application/pdf | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Springer | es_ES |
dc.relation.ispartof | European Physical Journal C: Particles and Fields | es_ES |
dc.rights | © CERN for the benefit of the ATLAS collaboration 2020 | es_ES |
dc.subject.other | Boson | es_ES |
dc.subject.other | Partons | es_ES |
dc.subject.other | Higgs Bosons | es_ES |
dc.title | Search for a scalar partner of the top quark in the all-hadronic tt¯ plus missing transverse momentum final state at √s = 13 TeV with the ATLAS detector | es_ES |
dc.type | article | es_ES |
dc.subject.eciencia | Física | es_ES |
dc.relation.publisherversion | https://doi.org/10.1140/epjc/s10052-020-8102-8 | es_ES |
dc.identifier.doi | 10.1140/epjc/s10052-020-8102-8 | es_ES |
dc.identifier.publicationfirstpage | 737-1 | es_ES |
dc.identifier.publicationissue | 8 | es_ES |
dc.identifier.publicationlastpage | 737-44 | es_ES |
dc.identifier.publicationvolume | 80 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.rights.cc | Reconocimiento | es_ES |
dc.rights.accessRights | openAccess | es_ES |
dc.facultadUAM | Facultad de Ciencias | es_ES |
dc.institutoUAM | Centro de Investigación Avanzada en Física Fundamental (CIAFF) | es_ES |