We have these equations that work, but actually figuring out the core of the theory is not so obvious." And so Sebens set out ...

When the electron is moving backwards in time, it's a positron, the anti-matter counterpart of the electron. Whether or not we should take Wheeler's idea seriously is debatable.

Electron–positron colliders can be either circular or linear in construction. The dynamics of circular electron–positron colliders are radically different as the particles are 2,000 times ...

However, now we had a new tension: between our simulation and the electron–positron results which had withstood 20 years of scrutiny. How could those 20-year-old results be wrong?

Using ever more energetic lasers, researchers have produced a record high number of electron-positron pairs, opening exciting opportunities to study extreme astrophysical processes, such as black ...

Long-term study The HESS observatory in Namibia has made a “unique measurement” of the electron and positron cosmic ray spectrum. (Courtesy: Klepser/DESY/HESS collaboration/CC BY-SA 3.0) A new ...

In some cases, these photons collided to create an electron-positron pair. From the data, they could show when a pair was created directly from light.

The team says that its source could be fully operational by 2026. Positron sources for accelerators rely on an effect called pair production, whereby a high-energy photon interacts with an atomic ...

However, now we had a new tension: between our simulation and the electron–positron results which had withstood 20 years of scrutiny. How could those 20-year-old results be wrong?