Cosmological consequences of superconducting string networks
| Autor: | Konstantinos Dimopoulos, Anne-Christine Davis |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Plasma scaling
Physics Nuclear and High Energy Physics Particle physics Supersymmetry breaking scale Horizon FOS: Physical sciences Astrophysics::Cosmology and Extragalactic Astrophysics String (physics) Cosmology Cosmic string High Energy Physics - Phenomenology High Energy Physics::Theory High Energy Physics - Phenomenology (hep-ph) Baryon asymmetry Scaling |
| Zdroj: | Physics Letters B. 446:238-246 |
| ISSN: | 0370-2693 |
| DOI: | 10.1016/s0370-2693(98)01540-8 |
| Popis: | We consider the cosmological consequences of a network of superconducting cosmic strings. For strong enough current the period of friction domination never ends. Instead a plasma scaling solution is reached. We demonstrate that this gives rise to a very different cosmology than the usual horizon scaling solution. In particular the string network gives rise to adistinct imprint on the microwave sky, giving non-Gaussian features on much smaller angular scales. It also gives rise to a filament structure in string wakes. Because of the presence of the string magnetocylinder, the string magnetic field cannot create a primordial magnetic field. Similarly, it evades nucleosynthesis constraints. We also show that strings formed at the supersymmetry breaking scale can create the required baryon asymmetry of the universe. Comment: 13 pages, PLB, accepted |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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