Particle physics

Particle physics

Contributors in Particle physics

Particle physics

The study of particles containing the bottom (b) quark. The b quark is the second heaviest quark, and is found only at particle accelerators. B-Mesons are ideal objects to study the tiny differences ...

b-meson

Physics; Particle physics

A meson containing a bottom (b) quark, and one lighter anti-quark. The b quark is the second heaviest quark, and is found only at particle accelerators. Only the top quark is heavier.

barn

Physics; Particle physics

A unit of cross-section, a barn is equal to 10 -28 m 2 .

baryons

Physics; Particle physics

A hadron composed of three quarks. Examples include the protons and neutrons found in ordinary nuclei.

branching ratio/fraction

Physics; Particle physics

When a particle decays, it often can decay in several ways. The likelihood of it decaying to a particular mode is known as its branching ratio for that decay mode.

center-of-mass energy

Physics; Particle physics

In particle collisions, this is the energy that can go into making new particles. For a collider experiment where two beams of equal energy collide head-on, this is simply the sum of the energy of ...