Two extremely precise experiments agree with a previously shocking measurement of just how big the proton is, which may help ...

By tracing the origins of an unusual, short-lived particle, researchers have gathered some of the strongest evidence yet that ...

Scientists at the Relativistic Heavy Ion Collider have observed particles emerging directly from empty ...

Add Yahoo as a preferred source to see more of our stories on Google. The particle, known as the Ξcc⁺ (Xi‑cc‑plus), is a new type of heavy proton-like particle containing two charm quarks and one down ...

A new subatomic particle known as the Ξcc⁺ has been discovered at CERN’s Large Hadron Collider. This heavy proton-like particle contains two charm quarks and was detected using the upgraded LHCb ...

The new baryon “Xi-cc-plus” decays into other particles almost instantly, but its existence could paint a clearer picture on ...

The ALICE experiment at the world's most powerful particle accelerator, the Large Hadron Collider, has given scientists their ...

Researchers at the Large Hadron Collider (LHC) have discovered a new particle, the Ξ cc ⁺, (“Xi cc plus”), a heavier cousin of the proton. The particle’s fleeting existence had made it invisible for ...

Particle physics has cataloged a new building block in the zoo of subatomic matter: At the Rencontres de Moriond Electroweak conference, the LHCb collaboration at CERN announced the discovery of the Ξ ...

Physicists just discovered a brand-new particle that appears to be an exotic cousin to the protons and neutrons that make up atoms. Those mundane subatomic particles are made up of even smaller ...

Protons make up most of the regular matter in the universe, but we're still figuring out a few of their quirks... Or quarks.