Particle X could be the biggest physics breakthrough in decades
And right now, physicists think that may be happening in a huge way.
Here's how particle physicist Michele Redi describes the recent buzz in Scientific American:
"This is by far the most exciting thing that has happened in particle physics over the last three decades. If this hint of new physics is confirmed - something that could happen within just a few weeks, or possibly even within days - it is difficult to state the importance of such a discovery. It would be bigger than the detection of the Higgs boson, which was just confirmation of what was already known.
"If the bump is real, we are about to start writing a whole new chapter in the history of fundamental physics. It is impossible to imagine where this could lead."
Redi is writing about what physicists are calling Particle X.
Scientists at CERN, the organization that runs the Large Hadron Collider, saw a small blip in their results that they can't explain using what they know now about particles and how they work.
So far, the blip hasn't been large enough to meet the meticulous standards particle physicists hold for confirming a new discovery. But since the detectors have been gathering a new set of data, scientists are hoping they'll have a better sense of whether the blip is real and what it could mean within the next two months.
"If this is really true, then it would possibly be the most exciting thing that I have seen in particle physics in my career," Csaba Csaki, a physicist at Cornell University, told the Associated Press.
That's because it would finally overthrow the so-called Standard Model, a set of mathematical rules that physicists developed to describe, sort, explain, and predict particles of matter in the universe.
The last time physics grappled with a challenge that big was a century ago, when Einstein's theory of relativity completely overhauled Newtonian physics.
The Standard Model made its debut in the early 1970s. In general, it works pretty well, but it has some holes: It can't explain gravity, or elegantly connect quantum mechanics (the physics of the very small) and general relativity (the physics of the very large), or solve the mystery of dark matter. So scientists have been hoping for awhile now that something better would come along.
Particle X, if it really exists, may be the first step of pulling together a theory that explains everything the Standard Model does, yet can also tackle the problems that defy it.
Scientists have some (very) complicated theories of what the mysterious particle may be, but they have no idea what precisely the particle they're hoping to find would do, beyond overthrowing the standard model.
Still, that would be enough to change everything we think we know about physics.