Theoretical Physicists Suggest There’s a Portal Connecting the Standard Model to Dark Physics

Theoretical physicists have advanced a new hypothesis that aims to connect the world of visible physics to the hidden forces of our Universe: what if there was a portal that would bridge the gap between the Standard Model and dark matter and dark energy ?

The idea is that the reason we have trouble understanding things like dark matter and dark energy isn’t because they don’t exist – it’s because we’ve been oblivious to them. a portal through which the regular particles and these “dark particles” interact. And that’s something that could be tested experimentally.

The idea of ​​portals in the Universe might sound pretty crazy, but let’s be clear for a second: we’re talking quantum-scale, tiny portals here – nothing that you can go through with a spaceship.

And this is not the first time that this type of portals has been explored in the world of theoretical physicists.

The concept exists because there is a big gap in physics between what might be called “visible physics” – things that we can directly measure and detect, such as electromagnetism and photons – and “visible physics”. dark”, which is made up of things we can feel the effects of but cannot interact with, such as dark matter and dark energy.

The portals are our attempt to explain how these two seemingly separate worlds interact to form the universe we live in.

The visible side of physics relies on 17 cataloged types of particles that make up the Standard Model – including electrons, photons and the Higgs boson.

But unfortunately, the Standard Model cannot explain everything we see happening in the Universe. Basically, it cannot explain gravity or the rate of expansion of the Universe.

Institute of Basic Sciences

This led to the proposal of the hypothetical forces of dark matter and dark energy – which should represent 95% of the Universe. There’s just one problem – no one has ever been able to see or detect either of these forces.

It has been suggested that there may be hidden dark particles that make up dark matter and dark energy that our tools are unable to detect, and this is something that experiments such as the Large Hadron Collider are working on, smashing regular particles together in hopes of finding something of that dark sector of physics in the wreckage.

But so far, the world of dark physics has eluded us. And that leaves a big void that researchers are rushing to fill to complete our understanding of the Universe.

Now, a potential solution has been offered. According to a new study by researchers at South Korea’s Institute of Basic Sciences, the gap could be bridged by a new kind of portal, known as the “black axion portal.”

Portals between the dark and visible worlds of physics are already something that theoretical physicists study, but so far only two types of portals have been proposed: vector portals and axion portals.

These portals are based on two hypothetical dark sector particles that researchers predict could exist – the axion and the dark photon.

An axion is believed to be a very light particle that has been proposed to solve some of the theoretical problems of the Standard Model. The dark photon is like a dark version of photons – particles of visible light.

But instead of interacting with the electromagnetic charge like ordinary photons, the dark photons would also couple with the so-called dark charge, which could be carried by other dark sector particles.

In the past, axionic and vectorial portals have been used experimentally to try to find evidence for these two particles, but the team suggests that their dark axionic portal could be the missing piece of the puzzle.

The basic idea behind the new portal is that a type of heavy quark could exist in the standard model that also carries a dark charge – meaning they could couple to dark photons.

Thanks to this heavy quark, axions, photons and dark photons can all interact, the team suggests – as you can see pictured below:

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“The Dark Axion Portal suggests the first significant connection between the two physics, which have been studied separately: it connects the dots,” said lead researcher LEE Hye-Sung.

“This will reinterpret previous data and potentially make a breakthrough in searches for axions and dark photons.”

So far, the team has just put forward the idea of ​​the portal and described how it might work, but now they’re coming up with new experiments that could actually use the portal to test if dark axions and photons actually exist once and for all. all.

It’s a pretty bold idea, and we won’t have an indication of how it sounds until it’s been tested further.

But until we can figure out a way to detect the dark sector of physics, we’re only seeing half the picture of the Universe – so scientists need to keep throwing these ideas around until something happens. thing sticks.

We can’t wait to see where they go with the idea next.

The research has been Posted in Physical examination letters.

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