Positrons can be produced by bombarding high-current and high-energy electrons into a target made of heavy metal, such as tungsten. However, not only positrons but also substantially equal numbers of ...

Researchers have experimentally generated high-density relativistic electron-positron pair-plasma beams by producing two to three orders of magnitude more pairs than previously reported. Black holes ...

Recent advances in experimental particle physics have directed significant attention towards hyperon decays and CP violation studies via electron–positron collisions. Hyperons, as strange baryons, ...

Quantum field theories are powerful tools for particle physics and condensed matter physics but are rarely used in plasma physics. However, in warm-dense regimes, where matter is partially ionized and ...

For more than half a century, particle physicists have theorized the existence of a “glueball,” a particle made entirely of gluons. While the past few decades have produced some compelling candidates, ...

China’s decision to halt work on what was meant to be the world’s largest particle accelerator marked a sharp turn in the global race to probe the Higgs boson and the fabric of the universe. The ...

At the smallest scales of nature, the rules of the world shift in ways that can feel unsettling and beautiful at the same ...

Physicists have finally watched positronium, a short‑lived atom made of an electron and its antimatter twin, behave like a rippling quantum wave instead of a tiny billiard ball. In a set of ...

A proton (far left) from the Super Proton Synchrotron (SPS) accelerator at CERN impinges on carbon nuclei (small gray spheres). This produces a shower of various elementary particles, including a ...