تقرير
Theoretical bounds on dark Higgs mass in a self-interacting dark matter model with $U(1)'$
| العنوان: | Theoretical bounds on dark Higgs mass in a self-interacting dark matter model with $U(1)'$ |
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| المؤلفون: | Li, Song, Yang, Jin Min, Zhang, Mengchao, Zhu, Rui |
| سنة النشر: | 2024 |
| المجموعة: | Astrophysics High Energy Physics - Phenomenology High Energy Physics - Theory |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Theory |
| الوصف: | Motivated by the null results of current dark matter searches and the small-scale problems, we study a dark sector charged by a spontaneous broken gauge $U(1)'$. To explore the parameter space of this model, in addition to the consideration of the small-scale data, we also consider the theoretical bounds on the dark Higgs mass, with the upper bound coming from the tree-level perturbative unitarity and the lower bound from the one-loop Linde-Weinberg bound. We deeply examine the dependence of the Linde-Weinberg bound on gauge choice and energy scale. Combining the theoretical and observational constraints, we obtain the following ranges for the parameter space: the dark matter mass is 10-500 GeV, the mediator (dark photon) mass is 0.5-5 MeV, the dark Higgs mass is 0.05-50 MeV, the dark fine-structure constant is 0.001-0.5. We conclude that the dark Higgs in this model cannot be ignored in the phenomenological study of the dark sector. Comment: 42 pages, 7 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2405.18226 |
| رقم الأكسشن: | edsarx.2405.18226 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |