Artículo
Novel Higgsino dark matter signal interpretation at the LHC
Arganda Carreras, Ernesto
; Delgado de la Rosa, Juan Antonio; Morales, Roberto Anibal
; Quirós, Mariano
Fecha de publicación:
09/2021
Editorial:
American Physical Society
Revista:
Physical Review D: Particles, Fields, Gravitation and Cosmology
ISSN:
1550-7998
e-ISSN:
2470-0029
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In the LHC searches for gluinos it is usually assumed that they decay predominantly into the lightest neutralino plus jets. In this work we perform a proof-of-concept collider analysis of a novel supersymmetric signal in which gluinos decay mostly into jets and the bino-like neutralino (χ 30), which in turn decays into the lightest Higgsino-like neutralino (χ 10), considered the dark matter candidate, together with the SM-like Higgs boson (h). This new physics signal then consists of an LHC final state made up by four light jets, four b-jets, and a large amount of missing transverse energy. We identify tt¯, V+jets (V=W, Z), and tt¯+X (X=W, Z, γ∗, h) productions as the most problematic backgrounds, and develop a search strategy for the high luminosity phase of the LHC, reaching signal significances at the evidence level for a luminosity of 1000 fb-1. The prospects for a luminosity of 3000 fb-1 are even more promising, with discovery-level significances.
Palabras clave:
Supersymmetry Phenomenology
,
Dark Matter
,
Collider Physics
,
LHC
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Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA
Articulos de INST.DE FISICA LA PLATA
Citación
Arganda Carreras, Ernesto; Delgado de la Rosa, Juan Antonio; Morales, Roberto Anibal; Quirós, Mariano; Novel Higgsino dark matter signal interpretation at the LHC; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 104; 5; 9-2021; 1-10
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