In particle physics, flavour or flavor refers to the species of an elementary particle. The Standard Model counts six flavours of quarks and six flavours...

In particle physics, strangeness (symbol S) is a property of particles, expressed as a quantum number, for describing decay of particles in strong and...

In nuclear physics and particle physics, isospin (I) is a quantum number related to the up- and down quark content of the particle. Isospin is also known...

an interesting test of quantum electrodynamics. Flavour (particle physics) Generation (particle physics) Koide formula Lepton Since the tauonic lepton...

the four fundamental interactions in physics. The study of photon-mediated interactions among charged particles is called quantum electrodynamics. The...

In particle physics, a massless particle is an elementary particle whose invariant mass is zero. At present the only confirmed massless particle is the...

In physics, bottomness (symbol B′; using a prime as plain B is used already for baryon number) or beauty is a flavour quantum number reflecting the difference...

perception. Flavour or flavor may also refer to: Flavors (programming language), an early object-oriented extension to Lisp Flavour (particle physics), a quantum...

In physics, the eightfold way is an organizational scheme for a class of subatomic particles known as hadrons that led to the development of the quark...

another flavour of quark (usually to a bottom quark). Anchordoqui, L.; Halzen, F. (2009). "Lessons in Particle Physics". arXiv:0906.1271 [physics.ed-ph]...

In particle physics, the baryon number is a strictly conserved additive quantum number of a system. It is defined as B = 1 3 ( n q − n q ¯ ) , {\displaystyle...

The Standard Model of particle physics is the theory describing three of the four known fundamental forces (electromagnetic, weak and strong interactions...

In particle physics, a generation or family is a division of the elementary particles. Between generations, particles differ by their flavour quantum number...

flavour quantum number representing the difference between the number of charm quarks ( c ) and charm antiquarks ( c ) that are present in a particle:...

In particle physics, lepton number (historically also called lepton charge) is a conserved quantum number representing the difference between the number...

unparticle physics and its potential impact on particle physics, astrophysics, cosmology, CP violation, lepton flavour violation, muon decay, neutrino oscillations...

In particle physics, weak isospin is a quantum number relating to the electrically charged part of the weak interaction: Particles with half-integer weak...

In physics, a subatomic particle is a particle smaller than an atom. According to the Standard Model of particle physics, a subatomic particle can be...

interactions.) Nucleons sit at the boundary where particle physics and nuclear physics overlap. Particle physics, particularly quantum chromodynamics, provides...

subatomic hadron particles which have two quarks from the first flavour generation (up and / or down quarks), and a third quark from a higher flavour generation...

In particle physics, the W and Z bosons are vector bosons that are together known as the weak bosons or more generally as the intermediate vector bosons...

In particle physics, a meson (/ˈmiːzɒn, ˈmɛzɒn/) is a type of hadronic subatomic particle composed of an equal number of quarks and antiquarks, usually...

In particle physics, a baryon is a type of composite subatomic particle, including the proton and the neutron, that contains an odd number of valence quarks...

Gell-Mann recognized the group structure of elementary particle classification introducing the flavour SU(3) and strangeness as a new quantum number. Strange...

properties and interactions are described by nuclear physics. Protons and neutrons are not elementary particles; each is composed of three quarks. The chemical...

In nuclear physics and particle physics, the weak interaction, also called the weak force, is one of the four known fundamental interactions, with the...

In particle physics, a boson (/ˈboʊzɒn/ /ˈboʊsɒn/) is a subatomic particle whose spin quantum number has an integer value (0, 1, 2, ...). Bosons form...

In particle physics, B − L (pronounced "bee minus ell") is a quantum number which is the difference between the baryon number (B) and the lepton number...

modern physics. Richard Feynman said, "The fact that the electromagnetic field can possess momentum and energy makes it very real, and [...] a particle makes...

Einstein's approach. In the Standard Model of particle physics, photons and other elementary particles are described as a necessary consequence of physical...