Pair production of h in the U(1)_XSSM

@misc{liu2026pair,
  title = {{Pair production of $h$ in the $U(1)_X$SSM}},
  author = {Yue-Tong Liu and Shu-Min Zhao and Meng-Zi Cao and Shuang Di and Rong-Zhi Sun and Xing-Xing Dong},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2608.25504},
  eprint = {2608.25504},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2608.25504},
  note = {CC BY 4.0},
}

TY  - UNPB
TI  - Pair production of h in the U(1)_XSSM
AU  - Yue-Tong Liu
AU  - Shu-Min Zhao
AU  - Meng-Zi Cao
AU  - Shuang Di
AU  - Rong-Zhi Sun
AU  - Xing-Xing Dong
PY  - 2026
DA  - 2026/10/12
PB  - arXiv
DO  - 10.48550/arxiv.2608.25504
UR  - https://arxiv.org/abs/2608.25504
AB  - Higgs pair production provides an important probe of the Higgs self-interaction and the Higgs potential structure. We study the lightest neutral Higgs pair production process gg → hh via gluon fusion at the 14 TeV LHC, in the U(1)_X supersymmetric standard model. As a U(1) extension of the minimal supersymmetric standard model (MSSM), this model introduces new superfields that bring additional one-loop contributions to the production amplitude. We analyze the parameter dependence of the cross section numerically and present contour distributions in two-dimensional parameter planes. The results indicate that the gauge couplings g_X and g_YX are the most sensitive parameters, and the model yields sizable new physics corrections under current experimental constraints. This work helps to understand Higgs physics in the U(1)_XSSM and guides new physics searches at the high-luminosity LHC.
ER  -