The lepton flavor universality including the b→ c l ν process in the U(1)_XSSM

Abstract

This paper calculates the lepton flavor universality including the b→ cℓ ν process under the U(1) extension of the minimal supersymmetric standard model (U(1)_XSSM), and provides numerical analysis and summary. The numerical results are used to create one-dimensional and multi-dimensional plots to analyze the impacts of various parameters on the ratios (R_J/ψ/R^SM_J/ψ, R_{D_s}/R^SM_{D_s}, R_{D^*_s}/R^SM_{D^*_s},R_{Λ_c}/R^SM_{Λ_c}). The results show that several parameters have a certain effect on the ratios. Although it can't match the experimental data very well, with the right combination of parameter values, it can give better numerical results than the Standard Model. This shows that the U(1)_XSSM is very helpful for studying b→ cℓ ν processes.

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BibTeX RIS

BibTeX

@misc{cao2026lepton,
  title = {{The lepton flavor universality including the $b\rightarrow c l ν$ process in the $U(1)_X$SSM}},
  author = {Meng-Zi Cao and Shu-Min Zhao and Yue-Tong Liu and Shuang Di and Rong-Zhi Sun and Xing-Xing Dong},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.29295},
  eprint = {2609.29295},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.29295},
  note = {CC BY 4.0},
}

RIS

TY  - UNPB
TI  - The lepton flavor universality including the b→ c l ν process in the U(1)_XSSM
AU  - Meng-Zi Cao
AU  - Shu-Min Zhao
AU  - Yue-Tong Liu
AU  - Shuang Di
AU  - Rong-Zhi Sun
AU  - Xing-Xing Dong
PY  - 2026
DA  - 2026/09/24
PB  - arXiv
DO  - 10.48550/arxiv.2609.29295
UR  - https://arxiv.org/abs/2609.29295
AB  - This paper calculates the lepton flavor universality including the b→ cℓ ν process under the U(1) extension of the minimal supersymmetric standard model (U(1)_XSSM), and provides numerical analysis and summary. The numerical results are used to create one-dimensional and multi-dimensional plots to analyze the impacts of various parameters on the ratios (R_J/ψ/R^SM_J/ψ, R_D_s/R^SM_D_s, R_D^*_s/R^SM_D^*_s,R_Λ_c/R^SM_Λ_c). The results show that several parameters have a certain effect on the ratios. Although it can't match the experimental data very well, with the right combination of parameter values, it can give better numerical results than the Standard Model. This shows that the U(1)_XSSM is very helpful for studying b→ cℓ ν processes.
ER  -

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