A great deal of evidence for neutrino oscillation has been collected from many sources, over a wide range of neutrino energies and with many different detector technologies.Solar neutrino oscillation ...
In 1928, Paul Dirac published a paper proposing that electrons can have both a positive charge and negative energy. This paper introduced the Dirac equation, a unification of quantum mechanics, specia ...
An electron can be bound to the nucleus of an atom by the attractive Coulomb force. A system of one or more electrons bound to a nucleus is called an atom. If the number of electrons is different from ...
See also: History of electromagnetismThe ancient Greeks noticed that amber attracted small objects when rubbed with fur. Along with lightning, this phenomenon is one of humanity's earliest recorded ex ...
Main articles: list of baryons and list of mesonsSome of the hadrons containing bottom quarks include:B mesons contain a bottom quark (or its antiparticle) and an up or down quark.Bc and Bs mesons con ...
In 1973, Makoto Kobayashi and Toshihide Maskawa predicted the existence of a third generation of quarks to explain observed CP violations in kaon decay. The names top and bottom were introduced by Hai ...
In the beginnings of particle physics (first half of the 20th century), hadrons such as protons, neutron and pions were thought to be elementary particles. However, new hadrons were discovered, the 'p ...
Main articles: List of baryons and list of mesonsSome of the hadrons containing charm quarks include:D mesons contain a charm quark (or its antiparticle) and an up or down quark.Ds mesons contain a ch ...
In the beginnings of particle physics (first half of the 20th century), hadrons such as protons, neutrons, and pions were thought to be elementary particles. However, as new hadrons were discovered, t ...
In the beginnings of particle physics (first half of the 20th century), hadrons such as protons, neutrons and pions were thought to be elementary particles. However, as new hadrons were discovered, th ...
meV, keV, MeV, GeV, TeV and PeV redirect here. For other uses, see MEV, KEV, GEV, TEV and PEV.In physics, the electron volt (symbol eV; also written electronvolt) is a unit of energy equal to approxim ...
Elementary particles are not eternal and indestructible. Unlike in classical mechanics, where forces only change a particle's momentum, the weak force can alter the essence of a particle, even an elem ...
Before the 1970s, physicists were uncertain about the binding mechanism of the atomic nucleus. It was known that the nucleus was composed of protons and neutrons and that protons possessed positive el ...
The term "hadron" was introduced by Lev B. Okun in a plenary talk at the 1962 International Conference on High Energy Physics. In this talk he said:Not withstanding the fact that this report deals wit ...
The name lepton comes from the Greek λεπτ?ν (leptón), neuter of λεπτ?? (leptós), "fine, small, thin"; the earliest attested form of the word is the Mycenaean Greek
