We may not know what a dark matter is, but scientists now have a better idea of what to look for.
Based on quantum gravity, physics has worked out the boundaries of a new, much harder and lower mass of dark matter grains. And they have found that the range is tighter than previously thought.
This means that it is unlikely that the dark subject candidates are either very light or heavy in response, based on our current understanding of the Universe.
“This is the first time that anyone has thought of using what we know about quantum depth as a way to work out the vast expanse of dark matter. It surprised us when we realized that no one had previous work – as our colleagues were reviewing our paper, “said physicist and astronomer Xavier Calmet of the University of Sussex in the UK.
“What we have done shows that a dark matter cannot be either ‘ultra-light’ or ‘super-heavy’ as some theory suggests – unless there is an additional force that is not yet known. working on it. This piece of research helps physics in two ways: it straightens the field of study for a dark matter, and it also helps to reveal whether there is an additional unknown unknown force in the Universe. “
Dark matter is without a doubt one of the greatest mysteries in the Universe as we know it. This is the name we give to a mysterious mass that relies on the effects of attraction that cannot be explained by the material we can find through other means – the usual subject such as stars, dust, and galleries.
For example, galleries rotate much faster than they should if they were just under the influence of gravity with the normal cause in them; a gravitational lens – a time-lapse lens around large objects – is much stronger than it should be. Anything that creates this extra weight is beyond our direct detection ability.
We only know it by its pulling effect on other things. Based on this effect, we know there is a lot of it. About 80 percent of everything in the Universe is a dark matter. It’s called a dark matter because, well, it’s dark. And also a secret.
However, we know that dark matter interacts with gravity, so Calmet and his colleague, physicist and astronomer Folkert Kuipers of the University of Sussex, turned to quantum gravity features to try to estimate the extent of mass of hypothetical dark material (whatever it may be).
Quantum gravity, they explain, imposes a number of boundaries on which dark grains of many different sizes can exist. While we do not have a rational working theory that unites the description of a general relationship spacecraft with the quantum apparent isolation, we know that any melting of the two would reveal specific foundations of both. Therefore, dark matter grains would have to adhere to quantum gravity rules on how grains break down or interact.
By carefully describing these limits, they were able to reject large areas that did not seem to be under our current understanding of physics.
Based on the assumption that only gravity can interact with a dark matter, they concluded that the mass of the glass should fall between 10-3 electronvolts and 107 electronvolts, depending on the spins of the grains, and the interaction nature of the dark objects.
That’s cowardly less than the 10-24 electronvolt to 1019 gigaelectronvolt range as has traditionally been said, the researchers said. And that’s important, since it largely excludes some candidates, such as WIMP (interacting weakly with large grains).
If such candidates later turn out to be the cultist behind the mystery of the dark subject, according to Calmet and Kuipers, it would mean that they are under the influence of some force we do not yet know about.
That would be cool, because it would signal a new physics – a new tool for analyzing and understanding our Universe.
Above all, the team’s limitations provide a new framework for consideration in finding a dark case, helping to minimize where and how you look.
“As a PhD student, it’s great to be able to work on such exciting and influential research,” Kuipers said. “Our findings are good news for experimenters as it will help them get closer to discover the true nature of a dark matter. “
The research was published in Letters of physics B..