For more than a decade, physicists in the United States have been chasing what came to be known as a “ghost particle” — the sterile neutrino. It was a hypothetical addition to the Standard Model of ...

Event displays (particle collisions) captured by the detectors of the LHC's four large experiments during 2025. Top left: first collisions recorded by CMS in May. Top right: proton-oxygen nucleus ...

All experiments broke records in the final full operating year of the third run of the LHC. All four LHC experiments performed extremely well throughout the 2025 proton run, detecting more collisions ...

Researchers created scalable quantum circuits capable of simulating fundamental nuclear physics on more than 100 qubits. These circuits efficiently prepare complex initial states that classical ...

As the name suggests, particle accelerators involve accelerating subatomic particles to incredibly high speeds and smashing them into tiny targets. When you purchase through links on our site, we may ...

We know very little about the first few microseconds after the Big Bang. We have theories, most of which we’re still double- and triple-checking to see if they actually make scientific sense. The ...

An international team of physicists has studied how particles are produced in high-energy electron–proton collisions through the lens of entanglement entropy Entanglement entropy has emerged as a new ...

Researchers have developed a groundbreaking 'Hybrid Supraparticle Synthesis Technology' that attaches inorganic nanoparticles to the surface of polymer microparticles through simple mechanical ...

Subatomic particles such as quarks can pair up when linked by ‘strings’ of force fields — and release energy when the strings are pulled to the point of breaking. Two teams of physicists have now used ...

Researchers have developed a novel high-energy particle detection instrumentation approach that leverages the power of quantum sensors -- devices capable of precisely detecting single particles. To ...

Physicists from the ATLAS collaboration at the European Organization for Nuclear Research — including members of Penn’s ATLAS group — have been awarded the 2025 Breakthrough Prize in fundamental ...

Were it not for a phenomenon called CP violation, we would probably not exist. A new analysis of particles smashing together at the Large Hadron Collider (LHC) is helping researchers better understand ...