Standard Model

Standard Model

standard model color
Predicted way back in the 1960s, the discovery of the Higgs boson in 2012 completed the Standard Model. Here's why it remains fascinating.
LHC insides
CERN's Large Hadron Collider is the most powerful particle accelerator ever. To go even further, we'll have to overcome something big.
CERN_ATLAS_Detector The standard model in physics
With new W-boson, top quark, and Higgs boson measurements, the LHC contradicts earlier Fermilab results. The Standard Model still holds.
Interior of a particle physics laboratory showing a complex particle accelerator setup with multiple cables, detectors, and machinery designed to study glueball particles.
Glueballs are an unusual, unconfirmed Standard Model prediction, suggesting bound states of gluons alone exist. We just found our first one.
dark energy
Dark energy is one of the biggest mysteries in all the Universe. Is there any way to avoid "having to live with it?"
cosmic ray blazar
Our Universe requires dark matter in order to make sense of things, astrophysically. Could massive photons do the trick?
atom quantum
Practically all of the matter we see and interact with is made of atoms, which are mostly empty space. Then why is reality so... solid?
symmetric
If the electromagnetic and weak forces unify to make the electroweak force, maybe, at higher energies, something even grander happens?
axions
The majority of the matter in our Universe isn't made of any of the particles in the Standard Model. Could the axion save the day?
Abstract representation of a cosmic event with a burst of particles emanating from a central point, blending astrophysical imagery with geometric designs.
The "first cause" problem may forever remain unsolved, as it doesn’t fit with the way we do science.
standard model structure
A great many cosmic puzzles still remain unsolved. By embracing a broad and varied approach, particle physics heads toward a bright future.
quantum gravity
Physicists just can't leave an incomplete theory alone; they try to repair it. When nature is kind, it can lead to a major breakthrough.
anitmatter annihilation
You can only create or destroy matter by creating or destroying equal amounts of antimatter. So how did we become a matter-rich Universe?
The letter j on a blue background.
Discrepancies between observations and theory regarding subatomic particles called muons may force scientists to rethink the quantum world.
A tunnel is being constructed in a tunnel.
The DUNE project will beam tiny neutrinos across vast distances. But the first step involved moving a heavier material: 1 million tons of rock.
fusion power
In our Universe, matter is made of particles, while antimatter is made of antiparticles. But sometimes, the physical lines get real blurry.
A digital abstract composition with dynamic white lines and swirls on a black background, incorporating some blue rectangular shapes that appear to disappear like antimatter.
In the early stages of the hot Big Bang, matter and antimatter were (almost) balanced. After a brief while, matter won out. Here's how.
Diagram illustrating the phase transition between hadronic matter, where protons and neutrons are formed, and quark-gluon plasma as a function of temperature and density.
For a substantial fraction of a second after the Big Bang, there was only a quark-gluon plasma. Here's how protons and neutrons arose.
higgs event atlas detector CERN LHC
In the very early Universe, practically all particles were massless. Then the Higgs symmetry broke, and suddenly everything was different.
A graphical representation illustrating the concept of the big bang and the subsequent expansion of the universe, depicted by a transition from a singular point of energy to a wide, grid-like spread of galaxies and celestial elements
When the hot Big Bang first occurred, the Universe reached a maximum temperature never recreated since. What was it like back then?
Black outline of an atomic symbol with three intersecting ellipses on a solid blue background.
38mins
Our host Kmele went inside Fermilab, America’s premiere particle accelerator facility, to find out how the smallest particles in the universe can teach us about its biggest mysteries.
bound nuclear state
In our Universe, all stable atomic nuclei have protons in them; there's no stable "neutronium" at all. But what's the reason why?
borexino
Back during the hot Big Bang, it wasn't just charged particles and photons that were created, but also neutrinos. Where are they now?
The muon particle infographic fermilab
From unexplained tracks in a balloon-borne experiment to cosmic rays on Earth, the unstable muon was particle physics' biggest surprise.
Nasa's finely-tuned image of a cluster of galaxies.
The question of why the Universe is the way it is is an ancient one, and none of the answers we have come up with are satisfying.
LL Orionis bow shock nebula
The laws of physics don't prefer matter over antimatter. So how can we be certain that distant stars & galaxies aren't made of antimatter?
Nasa image of a spiral galaxy that challenges cosmology.
Cosmology is unlike other sciences. When our view of the Universe changes, so does our understanding of philosophy and science itself.
Big bang diagram consensus crisis
There are a few clues that the Universe isn't completely adding up. Even so, the standard model of cosmology holds up stronger than ever.
standard model structure
Some constants, like the speed of light, exist with no underlying explanation. How many "fundamental constants" does our Universe require?
proton internal structure
If we waited long enough, would even protons themselves decay? The far future stability of the Universe depends on it.