less than one femtometer). Any leakage is carried by the color-neutral pion and kindred mesons. The residual strong force that these mesons mediate is also hugely important. It is largely ...

An interesting thing happened to me on the way to writing this column. Last week I wrote: “It’s fun to know a few things that are not all that important.” ...

The unit measures 110 × 110 × 210 mm. The Femtometer from Femtolaser Produktions GmbH (Vienna, Austria) is a Michelson-interferometer-based autocorrelator for ultrashort pulse characterization ...

Proton–proton collisions at the LHC produce a large number of particles that are emitted very close to each other, at distances of about 10-15 m (a femtometer). It is interesting to explore ...

Particle physics is the study of the elementary building blocks of matter and radiation and their interaction. The fundamental particles are summarised by the standard model. This includes leptons ...