تقرير
Inhomogeneous cold electroweak baryogenesis from early structure formation due to Yukawa forces
| العنوان: | Inhomogeneous cold electroweak baryogenesis from early structure formation due to Yukawa forces |
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| المؤلفون: | Flores, Marcos M., Kusenko, Alexander, Pearce, Lauren, White, Graham |
| سنة النشر: | 2022 |
| المجموعة: | Astrophysics High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics |
| الوصف: | We show that viable electroweak baryogenesis can be realized without a first-order phase transition if plasma is heated inhomogeneously by non-gravitational structure formation in some particle species. Yukawa interactions can mediate relatively long-range attractive forces in the early Universe. This creates an instability and leads to growth of structure in some species even during the radiation dominated era. At temperatures below the elecroweak scale, the collapsing and annihilating halos can heat up plasma in fireballs that expand and create the out-of-equilibrium high-temperature environment suitable for generating the baryon asymmetry. The plasma temperature at the time of baryogenesis can be as low as 10 MeV, making it consistent with both standard and low-reheat cosmologies. Comment: 6 pages, 2 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2208.09789 |
| رقم الأكسشن: | edsarx.2208.09789 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |