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This is a measure of the total data collected at an accelerator. It is the intensity of the accelerator, summed over some specified time period. A barn<sup>-1</sub> (inverse barn) of data will give one event for a process that has a cross-section of one barn. A picobarn<sup>-1</sup> (a much larger amount of data) will give one event for a much rarer process that has a cross-section of one picobarn.
Industry:Physics
Along with quarks, leptons make up all known matter. Unlike quarks, leptons do not participate in strong interactions. Neutrinos and electrons are two common examples. There are three flavors of leptons: electron, muon, and tau.
Industry:Physics
In the Standard Model, leptons do not change flavor. For example, a muon would never turn into an electron. If this were observed, it would be a signal for new physics. Evidence for Neutrino oscillations already indicate that lepton flavor violation may occur. See MECO.
Industry:Physics
An accelerator that accelerates two beams of charged particles in a straight line, and then collides them head on.
Industry:Physics
This figure of merit for an accelerator quantifies the intensity of the beams. It is directly related to the number of events produced at the machine.
Industry:Physics
A particle of a given flavor sometimes transforms into a similar particle of a different flavor. The parameters that quantify how likely this is to occur are known as mixing angles.
Industry:Physics
The MRE account was created by the National Science Foundation for the funding and construction of large, cutting-edge research facilities.
Industry:Physics
A fundamental particle, identical to the electron, but approximately 200 times heavier. It is commonly found in cosmic rays.
Industry:Physics
