Neutralino dark matter in the extension of MSSM with two triplets and singlet

In an extension of MSSM with two triplets and a singlet, called the TNMSSM, there are seven neutralinos which can enrich the study of cold dark matter if one expects that the weakly interacting massive particle (WIMP) is responsible for the observation of Planck satellite. Such a model, compared to...

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Published in:The European physical journal. C, Particles and fields Particles and fields, 2024-11, Vol.84 (11), p.1216-20, Article 1216
Main Authors: Yang, Zhong-Jun, Yang, Jin-Lei, Zhao, Shu-Min, Wu, Xing-Gang, Feng, Tai-Fu
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Cosmology
Cold dark matter
Dark matter
Density
Elementary Particles
Fermions
Hadrons
Heavy Ions
Large Hadron Collider
Magnetic moments
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Parameters
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular Article
Satellite observation
Standard model (particle physics)
String Theory
Weakly interacting massive particles
Xenon
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Summary:In an extension of MSSM with two triplets and a singlet, called the TNMSSM, there are seven neutralinos which can enrich the study of cold dark matter if one expects that the weakly interacting massive particle (WIMP) is responsible for the observation of Planck satellite. Such a model, compared to the MSSM, can naturally offer a solution to the μ problem, and its lightest neutralino, which is bino-like, can also provide a correct relic density by using the coannihilation mechanism due to the newly added triplinos. Taking into account the related experimental measurements, such as the bound on the SM-like Higgs mass, the B meson rare decays, the anomalous magnetic moment of the muon a μ , the Large Hadron Collider (LHC) measurements and the latest dark matter direct detection experiment LUX-ZEPLIN (LZ), the TNMSSM parameter space can be strictly limited. In respect to all the constraints mentioned above, we find that a bino-like neutralino with a mass in the region [ 100 , 450 ] GeV can successfully account for the correct dark matter relic density. Additionally, most of the viable parameter space can be tested in the near future experiments such as the Xenon-nT experiment or LHC.
ISSN:1434-6052
1434-6044
1434-6052
DOI:10.1140/epjc/s10052-024-13592-x