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ATLAS on-Z excess via gluino-Higgsino-singlino decay chains in the NMSSM

Harigaya, K.; Ibe, M.; Kitahara, T.

Abstract (englisch):
Recently the ATLAS experiment has reported 3.0 σ excess in an on- Z signal region in searches for supersymmetric particles. We find that the next-to-minimal supersymmetric standard model can explain this excess by the production of gluinos which mainly decay via g ˜ → g χ ˜ 2 , 3 0 → g Z χ ˜ 1 0 g~→gχ~02,3→gZχ~01 where χ ˜ 2 , 3 0 χ~02,3 and χ ˜ 1 0 χ~01 are the Higgsino and the singlino-like neutralinos, respectively. We show that the observed dark matter density is explained by the thermal relic density of the singlino-like neutralino, simultaneously. We also discuss the searches for the Higgs sector of this scenario at the Large Hadron Collider.


Zugehörige Institution(en) am KIT Institut für Theoretische Teilchenphysik (TTP)
Institut für Kernphysik (IKP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2016
Sprache Englisch
Identifikator DOI: 10.1007/JHEP01(2016)030
ISSN: 1126-6708
URN: urn:nbn:de:swb:90-540005
KITopen ID: 1000054000
HGF-Programm 51.01.01; LK 01
Erschienen in Journal of High Energy Physics
Band 2016
Heft 1
Seiten 1-17
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