List of particles

composite particlecompositehypothetical particlecomposite particlesfamily of particlesparticlescombination of particlescomposedfamilies of particleslist of known particles
This is a list of known and hypothesized particles.wikipedia
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Fermion

fermionsFermionichalf-integer spin
Fermions have half-integer spin while bosons have integer spin.
Fermions include all quarks and leptons, as well as all composite particles made of an odd number of these, such as all baryons and many atoms and nuclei.

Matter

corporealsubstancematerial
Fermions are the basic building blocks of all matter.
All everyday objects that can be touched are ultimately composed of atoms, which are made up of interacting subatomic particles, and in everyday as well as scientific usage, "matter" generally includes atoms and anything made up of them, and any particles (or combination of particles) that act as if they have both rest mass and volume.

Hadron

hadronshadronichadronic decays
Quarks are the fundamental constituents of hadrons and interact via the strong force.
In particle physics, a hadron (ἁδρός, hadrós; "stout, thick") is a subatomic composite particle made of two or more quarks held together by the strong force in a similar way as molecules are held together by the electromagnetic force.

Quark

quarksantiquarkantiquarks
They include the quarks and leptons, as well as any composite particles consisting of an odd number of these, such as all baryons and many atoms and nuclei.
Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei.

Standard Model

standard model of particle physicsThe Standard ModelStandard Model of Physics
All the particles of the Standard Model have been experimentally observed, recently including the Higgs boson in 2012.
It is used as a basis for building more exotic models that incorporate hypothetical particles, extra dimensions, and elaborate symmetries (such as supersymmetry) in an attempt to explain experimental results at variance with the Standard Model, such as the existence of dark matter and neutrino oscillations.

Lepton

leptonsantileptondilepton
They include the quarks and leptons, as well as any composite particles consisting of an odd number of these, such as all baryons and many atoms and nuclei.
Charged leptons can combine with other particles to form various composite particles such as atoms and positronium, while neutrinos rarely interact with anything, and are consequently rarely observed.

Higgs boson

Higgs fieldHiggs particleGod particle
All the particles of the Standard Model have been experimentally observed, recently including the Higgs boson in 2012.
For example, approximately 99% of the mass of baryons (composite particles such as the proton and neutron), is due instead to quantum chromodynamic binding energy, which is the sum of the kinetic energies of quarks and the energies of the massless gluons mediating the strong interaction inside the baryons.

Boson

bosonsBosonicinteger spin
Fermions have half-integer spin while bosons have integer spin.
Bosons may be either elementary, like photons, or composite, like mesons.

Large Hadron Collider

LHCLarge Hadron Collider (LHC)Hadron Collider
A new particle expected to be the Higgs boson was observed at the CERN/LHC on 14 March 2013, around the energy of 126.5 GeV with an accuracy of close to five sigma (99.9999%, which is accepted as definitive).
The term hadron refers to subatomic composite particles composed of quarks held together by the strong force (as atoms and molecules are held together by the electromagnetic force).

Gauge boson

gauge bosonsbosonforce carrier particles
Elementary bosons responsible for the four fundamental forces of nature are called force particles (gauge bosons).
Gauge bosons are different from the other kinds of bosons: first, fundamental scalar bosons (the Higgs boson); second, mesons, which are composite bosons, made of quarks; third, larger composite, non-force-carrying bosons, such as certain atoms.

Gluon

gluonsgluon fieldAntigluon
Bosons may be either elementary, like photons and gluons, or composite, like mesons.
Due to this force, quarks are confined within composite particles called hadrons.

Baryon

baryonic matterbaryonsbaryonic
They include the quarks and leptons, as well as any composite particles consisting of an odd number of these, such as all baryons and many atoms and nuclei.
In particle physics, a baryon is a type of composite subatomic particle which contains an odd number of valence quarks (at least 3).

Preon

Preon mattermight turn up to be composite particles after allpreons
Preons were suggested as subparticles of quarks and leptons, but modern collider experiments have all but ruled out their existence.
Within the Standard Model, there are several classes of particles.

Magnetic photon

In physics, a magnetic photon is a hypothetical particle.

Nucleon

nucleonschiral bag modelnuclear particle
Now they are known to be composite particles, made of three quarks bound together by the so-called strong interaction.

Antiparticle

antiparticlesanti-particleantiquark
All known fermions, except neutrinos, are also Dirac fermions; that is, each known fermion has its own distinct antiparticle.

Positron

positronsantielectrone +
The antiparticle of an electron is an antielectron, which is almost always called a "positron" for historical reasons.

Neutron

neutronsfree neutronn
The neutron is classified as a hadron, because it is a composite particle made of quarks.

Pentaquark

pentaquarksTheta+
Instead, they form composite particles known as hadrons so that their colour charges cancel out.

List of baryons

Baryon resonance particlesbaryons
Baryons are composite particles made of three quarks, as opposed to mesons, which are composite particles made of one quark and one antiquark.

List of mesons

omega mesonCharmed eta mesonω
See list of particles for a more detailed list of particles found in particle physics.''

Molecule

molecularmoleculesmolecular structure
Molecules are the smallest particles into which a non-elemental substance can be divided while maintaining the physical properties of the substance.
Earlier definitions were less precise, defining molecules as the smallest particles of pure chemical substances that still retain their composition and chemical properties.

Timeline of particle discoveries

It also includes the discovery of composite particles and antiparticles that were of particular historical importance.

Dyon

In physics, a dyon is a hypothetical particle in 4-dimensional theories with both electric and magnetic charges.