Particle physics

Particle physics

Contributors in Particle physics

Particle physics

A veto detector is used for eliminating possible false signals in an experiment. When a false signal has a notable feature, a veto detector can be built to look for that feature. In this way, when ...

weak force

Physics; Particle physics

This force is carried by heavy particles known as the W-boson and the Z-boson. The most common manifestation of this force is beta decay, in which a neutron in a nucleus is transformed into a proton, ...

weak neutral current

Physics; Particle physics

A very weak interaction that is independent of the electric charge of a particle. Particles can exchange energy through this mechanism, but other characteristics of the particles remain unchanged. ...

cross-section

Physics; Particle physics

a measure of the likelihood of a given process occurring at an accelerator. The idea is that two objects with a larger cross-sectional area are more likely to hit one another. So, larger ...

dark energy

Physics; Particle physics

A poorly understood (and non-luminous) substance that exerts a pressure that tends to accelerate the expansion of the universe. This dark energy counteracts gravity's natural tendency to slow the ...

dark matter

Physics; Particle physics

Astronomical measurements indicate that luminous matter, such as our sun, makes up only a small percentage of the total matter in the universe. The missing mass that makes up the remainder is known ...

decay

Physics; Particle physics

Exotic particles produced at accelerators are often very short-lived, and can transform into lighter, less exotic products, such as electrons and photons. This process of transformation is known as ...