Timeline for Could the matter-antimatter symmetry be local rather than universal?
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 28, 2022 at 23:29 | comment | added | Allure | @AdrienAmour age is not the deciding factor here. The deciding factor is the density. If there is antimatter and matter in close proximity, then it will annihilate and emit detectable signatures. At present even the density of intergalactic space is high enough to emit detectable signatures, see the link in the answer. | |
| Apr 28, 2022 at 21:53 | comment | added | Adrien Amour | Do yo think such a scenario would be experimentally detectable? | |
| Apr 28, 2022 at 21:52 | comment | added | Adrien Amour | This is helpful, thanks. I suppsose the scenario I'm proposing is one where the universe has age enough to the point where there is no longer any annihilation taking place. What I'm imagining is a lot of annihilation transpiring in the very early stages of the universe (perhaps even contributing to the CMBR!). This would leave vast portions of the universe void of both matter and anti matter, and some regions with either only matter remaining or anti matter remaining (due to slight variation in density). | |
| Apr 28, 2022 at 7:39 | history | answered | Allure | CC BY-SA 4.0 |