LHC dark matter signals from vector resonances and top partners

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversity of Southampton-
Autor(es): dc.contributorRutherford Appleton Laboratory-
Autor(es): dc.contributorInstitute for Basic Science (IBS)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorKorea Institute for Advanced Study-
Autor(es): dc.creatorBelyaev, Alexander S.-
Autor(es): dc.creatorFlacke, Thomas-
Autor(es): dc.creatorJain, Bithika-
Autor(es): dc.creatorSchaefers, Patrick B.-
Data de aceite: dc.date.accessioned2025-08-21T16:37:37Z-
Data de disponibilização: dc.date.available2025-08-21T16:37:37Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2018-08-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1103/PhysRevD.98.035019-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/228591-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/228591-
Descrição: dc.descriptionExtensions of the standard model which address the hierarchy problem and dark matter (DM) often contain top partners and additional resonances at the TeV scale. We explore the phenomenology of a simplified effective model with a vector resonance Z′, a fermionic vectorlike colored partner of the top quark T′ as well as a scalar DM candidate φ and provide publicly available implementations in CalcHEP and MadGraph. We study the pp→Z′→T′T′̄→tt̄φφ process at the LHC and find that it plays an important role in addition to the T′T′̄ production via strong interactions. It turns out that the presence of the Z′ can provide a dominant contribution to the tt̄+ET signature without conflicting with existing bounds from Z′ searches in di-jet and di-lepton final states. We find that, through this process, the LHC is already probing DM masses up to about 900 GeV and top partner masses up to about 1.5 TeV, thus exceeding the current bounds from QCD production alone almost by a factor of 2 for both particles.-
Descrição: dc.descriptionSchool of Physics and Astronomy University of Southampton-
Descrição: dc.descriptionParticle Physics Department Rutherford Appleton Laboratory-
Descrição: dc.descriptionCenter for Theoretical Physics of the Universe Institute for Basic Science (IBS)-
Descrição: dc.descriptionICTP South American Institute for Fundamental Research Instituto de Física Teórica Universidade Estadual Paulista-
Descrição: dc.descriptionSchool of Physics Korea Institute for Advanced Study-
Descrição: dc.descriptionICTP South American Institute for Fundamental Research Instituto de Física Teórica Universidade Estadual Paulista-
Idioma: dc.languageen-
Relação: dc.relationPhysical Review D-
???dc.source???: dc.sourceScopus-
Título: dc.titleLHC dark matter signals from vector resonances and top partners-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.