Explaining the possible 95 GeV excesses in the $B-L$ symmetric SSM
| Autor: | Yang, Jin-Lei, Guo, Ming-Hui, Zhang, Wen-Hui, Zhang, Hai-Bin, Feng, Tai-Fu |
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| Rok vydání: | 2024 |
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| Druh dokumentu: | Working Paper |
| Popis: | This study investigates the excesses observed in the diphoton and $b\bar b$ data around $95\;{\rm GeV}$ within the framework of the $B-L$ supersymmetric model (B-LSSM). Comparing with the minimal supersymmetric standard model, the B-LSSM incorporates two singlet chiral Higgs bosons which mix with the SM-like Higgs boson due to the gauge kinetic mixing effect. The richer Higgs sector indicates that designating the B-LSSM specific CP-even Higgs state as the lightest Higgs boson has great potential to explain the excesses at around $95\;{\rm GeV}$. Considering the two-loop effective potential corrections to the squared Higgs mass matrix, it is found that the signal strengthes $\mu(h_{95})_{\gamma\gamma}$, $\mu(h_{95})_{b b}$ can be described simultaneously in the experimental $1\sigma$ interval. And the B-LSSM specific parameters $\tan\beta'$, $B_\eta$, $g_{YB}$, $M_{Z'}$ affect the theoretical predictions on the light Higgs boson masses and signal strengthes $\mu(h_{95})_{\gamma\gamma}$, $\mu(h_{95})_{bb}$ significantly. Comment: 28 pages, 5 figures. arXiv admin note: text overlap with arXiv:2405.07243 |
| Databáze: | arXiv |
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