particle physics

Quark and lepton study

Particle physics is the branch of physics that studies the fundamental constituents of matter and energy—subatomic particles like quarks, electrons, and neutrinos—and the forces governing their interactions.

Experiments often involve accelerating particles to high speeds and observing collisions: The Large Hadron Collider has advanced particle physics dramatically.

Also called high-energy physics.

particles

quark

Fundamental matter particle

  • leptonFundamental particle without strong interactions
  • bosonInteger-spin subatomic particle
  • fermionHalf-integer spin particle

neutrino · muon · gluon · electron · positron · photon · hadron · baryon · meson · tau

colliders

LHC

Massive subatomic collision facility

detector · collision · superconducting · magnets · bunches · calorimeter · luminosity · beam · target · CMS

theory

gauge

Standard of measurement

chirality · supersymmetry · QED · spin

interactions

scattering

Distribution in many directions

decay · exchange · vertex · propagator · resonance · threshold · channel · amplitude · transition · emission

Categories
Opposites
scale of physical inquiry

particle physicscosmology

Study of universal structure

astrophysics · astronomy · general relativity · planetary science · geophysics

reductionist vs. emergent approaches

particle physicsthermodynamics

Science of heat-energy relationships

materials science · ecology · biophysics · fluid dynamics

abstract vs. applied physics

particle physicsapplied physics

Science for practical technology

nuclear engineering · electronics

Family

physical, particular, physics, physician, particle, particles, physicist, nonphysical, particularity

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