In high-energy collisions, luminosity, or beam brightness, isn't the only thing to consider; low background noise at the detectors is also important. When wayward particles bounce around inside detectors, they can mimic real collisions, muddy results, and even damage parts of the collider.
The distinctive and amusing term "barn" originated with two Purdue University physicists working on the Manhattan Project in 1942—and it was classified information by the US government until after World War II.
It looks like a simple silver trailer, but it's more like a shoe store on wheels. Mike Sitarz pulls his metal trailer, better known among Fermilab employees as the "shoemobile," behind the Technical Division industrial buildings at 8 a.m. every Tuesday.
Particle physics detectors in space will record gamma rays in search of dark matter, the evolution of stars, and natures most powerful particle accelerators.
If the proposed International Linear Collider (ILC) completes the evolution from physicists' dream to discovery machine, Jonathan Dorfan will know when and where the transforming moment occurred: August 20, 2004, in Beijing, China.
Few periods in history were shaped by science as much as the 1950s. The Cold War was in full swing. The space race was finishing its first lap with Sputnik's launch. The Manhattan Project remained fresh in everyone's minds.
