From sticking a magnet on a fridge door to throwing a ball into a basket, the forces of physics are at play in every moment of our lives.
All of the forces we experience a day are often reduced to only four categories: gravity, electromagnetism, the strong interaction, and therefore the weak interaction.
Now, physicists say they need found possible signs of a fifth fundamental force of nature.
The findings come from research administered at a laboratory near Chicago.
The four fundamental forces govern how all the objects and particles within the universe interact with one another.
For example, gravity makes objects fall to the ground, and heavy objects behave as if they are glued to the floor.
The UK’s Science and Technology Facilities Council (STFC) said the result “provides strong evidence for the existence of an undiscovered sub-atomic particle or new force”.
But the results from the Muon g-2 experiment don’t add up to a conclusive discovery yet.
There is currently a one in a 40,000 chance that the result could be a statistical fluke – equating to a statistical level of confidence described as 4.1 sigmas.
A level of 5 sigmas, or a 1 in 3.5 million chance of the observation being a coincidence, is required to say a discovery.
Prof Mark Lancaster, who is that the UK lead for the experiment. “We have found the interaction of muons aren’t in agreement with the quality Model [the current widely-accepted theory to elucidate how the building blocks of the Universe behave].”
The University of Manchester researcher added: “Clearly, this is often very exciting because it potentially points to a future with new laws of physics, new particles, and a replacement force which we have not seen to date.”
The finding is that the latest during a string of promising results from high-energy physics experiments within the US, Japan, and last from the massive Hadron Collider on the Swiss-French border.
Prof Ben Allanach, from Cambridge University, who wasn’t involved in the newest effort, said: “My Spidey sense is tingling and telling me that this is often getting to be real.