تقرير
Self-interacting dark sectors in supernovae are fluid
| العنوان: | Self-interacting dark sectors in supernovae are fluid |
|---|---|
| المؤلفون: | Fiorillo, Damiano F. G., Vitagliano, Edoardo |
| سنة النشر: | 2024 |
| المجموعة: | Astrophysics High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena |
| الوصف: | We revisit supernova (SN) bounds on a hidden sector consisting of millicharged particles $\chi$ and a massless dark photon. Unless the self-coupling is fine-tuned to be small, rather than exiting the SN core as a gas, the particles form a relativistic fluid and subsequent dark QED fireball, streaming out against the drag due to the interaction with matter. Novel bounds due to excessive energy deposition in the mantle of low-energy SNe can be obtained. The cooling bounds from SN~1987A are unexpectedly not affected in the free-streaming regime. The inclusion of $\chi\bar{\chi}\rightarrow \rm SM$ substantially modifies the constraints in the trapping regime, which can only be treated hydrodynamically. Our results can be adapted to generic sub-GeV self-interacting dark sectors. Comment: 5 pages, 2 figures, with Supplemental Material |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2404.07714 |
| رقم الأكسشن: | edsarx.2404.07714 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |