New dark matter candidate in the $$B-L$$ B - L symmetric SSM

Jin-Lei Yang (Department of Physics, Hebei University, Baoding, 071002, China; Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province, Baoding, 071002, China) ; Zhong-Jun Yang (Department of Physics, Chongqing Key Laboratory for Strongly Coupled Physics, Chongqing University, Chongqing, 401331, China) ; Xiu-Yi Yang (Department of Science, University of Science and Technology Liaoning, Anshan, 114051, China) ; Hai-Bin Zhang (Department of Physics, Hebei University, Baoding, 071002, China; Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province, Baoding, 071002, China) ; Tai-Fu Feng (Department of Physics, Hebei University, Baoding, 071002, China; Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province, Baoding, 071002, China)

The B-L symmetric SUSY model (B-LSSM) introduces a new $$Z'$$ Z gauge boson and two singlet scalars, which indicates there are more neutralinos in the B-LSSM comparing with the minimal SUSY extension of standard model (MSSM). These new neutralinos provide more dark matter (DM) candidates in the B-LSSM, we find that the super partner of the new scalar singlet can serve as the lightest supersymmetric particle (LSP) and be considered as a DM candidate. The properties of this new DM candidate are analyzed in this work. Taking into account the experimental constraints on Higgs boson mass, B meson rare decays and muon anomalous magnetic dipole moment, the numerical results are obtained and presented. The properties of new DM candidate in the B-LSSM satisfy the observed relic density $$\Omega h^2$$ Ω h 2 and comply with the latest upper bounds on $$\sigma _\textrm{SI}^{\chi _1^0-n}$$ σ SI χ 1 0 - n , and its mass is expected to greater than $$80\;\textrm{GeV}$$ 80 GeV approximately.

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      "surname": "Zhang", 
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      "title": "New dark matter candidate in the  $$B-L$$  <math> <mrow> <mi>B</mi> <mo>-</mo> <mi>L</mi> </mrow> </math>   symmetric SSM"
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      "source": "Springer", 
      "value": "The B-L symmetric SUSY model (B-LSSM) introduces a new  $$Z'$$  <math> <msup> <mi>Z</mi> <mo>\u2032</mo> </msup> </math>   gauge boson and two singlet scalars, which indicates there are more neutralinos in the B-LSSM comparing with the minimal SUSY extension of standard model (MSSM). These new neutralinos provide more dark matter (DM) candidates in the B-LSSM, we find that the super partner of the new scalar singlet can serve as the lightest supersymmetric particle (LSP) and be considered as a DM candidate. The properties of this new DM candidate are analyzed in this work. Taking into account the experimental constraints on Higgs boson mass, B meson rare decays and muon anomalous magnetic dipole moment, the numerical results are obtained and presented. The properties of new DM candidate in the B-LSSM satisfy the observed relic density  $$\\Omega h^2$$  <math> <mrow> <mi>\u03a9</mi> <msup> <mi>h</mi> <mn>2</mn> </msup> </mrow> </math>   and comply with the latest upper bounds on  $$\\sigma _\\textrm{SI}^{\\chi _1^0-n}$$  <math> <msubsup> <mi>\u03c3</mi> <mtext>SI</mtext> <mrow> <msubsup> <mi>\u03c7</mi> <mn>1</mn> <mn>0</mn> </msubsup> <mo>-</mo> <mi>n</mi> </mrow> </msubsup> </math>  , and its mass is expected to greater than  $$80\\;\\textrm{GeV}$$  <math> <mrow> <mn>80</mn> <mspace width=\"0.277778em\"></mspace> <mtext>GeV</mtext> </mrow> </math>   approximately."
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Published on:
24 November 2023
Publisher:
Springer
Published in:
European Physical Journal C , Volume 83 (2023)
Issue 11
Pages 1-8
DOI:
https://doi.org/10.1140/epjc/s10052-023-12235-x
Copyrights:
The Author(s)
Licence:
CC-BY-4.0

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