The J/ψ (J/psi) meson /ˈdʒeɪ ˈsaɪ ˈmiːzɒn/ is a subatomic particle, a flavor-neutral meson consisting of a charm quark and a charm antiquark. Mesons formed...

particle physics, the phi meson or ϕ meson is a vector meson formed of a strange quark and a strange antiquark. It was the ϕ meson's unusual propensity to...

phenomena more readily than do baryons. But mesons can be quite massive: for example, the J/Psi meson ( J/ψ ) containing the charm quark, first seen 1974...

particle found in composite subatomic particles called hadrons such as the J/psi meson and the charmed baryons created in particle accelerator collisions. Several...

the charm quark was first seen in the J/Psi meson ( J/ψ ) in 1974, and the bottom quark in the upsilon meson ( ϒ ) in 1977. The top quark (the last and...

of a meson. "Exotic" hadrons, containing more than three valence quarks, have been discovered in recent years. A tetraquark state (an exotic meson), named...

divergence) Pound per square inch, unit of pressure PSI (computational chemistry), software J/psi meson, subatomic particle Porous silicon Water potential...

In particle physics, a pion (or a pi meson, denoted with the Greek letter pi: π ) is any of three subatomic particles: π0 , π+ , and π− . Each pion consists...

example, a baryon, like a proton or a neutron, composed of three quarks; or a meson, composed of two quarks), or an elementary particle, which is not composed...

those that are, are dubbed "hadrons", which are now further classified as mesons (middle mass) and baryons (heavy weight). But the discovery of the (neutral)...

atom. Contents:  A B C D E F G H I J K L M-Z See also References External links J/psi meson The J/ψ (J/psi) meson /ˈdʒeɪ ˈsaɪ ˈmiːzɒn/ or psion is a subatomic...

and ϕ mesons are mixtures of the SU(3) wave functions as follows. ω = ψ 8 sin ⁡ θ + ψ 1 cos ⁡ θ {\displaystyle \omega =\psi _{8}\sin \theta +\psi _{1}\cos...

eta prime meson ( η′ ) are isosinglet mesons made of a mixture of up, down and strange quarks and their antiquarks. The charmed eta meson ( η c) and...

containing bottom quarks include: B mesons contain a bottom quark (or its antiparticle) and an up or down quark. B c and B s mesons contain a bottom quark along...

muon was confirmed in 1937 by J. C. Street and E. C. Stevenson's cloud chamber experiment. A particle with a mass in the meson range had been predicted before...

Examples of hadrons containing strange quarks include kaons ( K ), strange D mesons ( D s), Sigma baryons ( Σ ), and other strange particles. According to the...

The Upsilon meson ( ϒ ) is a quarkonium state (i.e. flavourless meson) formed from a bottom quark and its antiparticle. It was discovered by the E288...

The respective formulas for these oxides are N2O, NO, and NO2. In 1897, J. J. Thomson discovered that cathode rays are not electromagnetic waves but made...

D mesons are the lightest particle containing charm quarks. They are often studied to gain knowledge on the weak interaction. The strange D mesons (Ds)...

in 1970, which introduced the charm quark and predicted the J/psi meson. The J/psi meson was indeed found in 1974, which confirmed the existence of charm...

particle physics, a kaon (/ˈkeɪ.ɒn/), also called a K meson and denoted K , is any of a group of four mesons distinguished by a quantum number called strangeness...

rho meson has spin j = 1 (a vector meson) and a much higher value of the mass. This mass difference between the pions and rho mesons is attributed to a...

mesons and Yukawa particles" (PDF). Progress of Theoretical Physics. 1 (4): 143–150. Bibcode:1946PThPh...1..143S. doi:10.1143/PTP.1.143. G. Danby; J.-M...

the energy to produce the τ+ τ− pair is similar to the threshold for D meson production. The mass and spin of the tau were subsequently established by...

confined in an envelope of gluons that confer vastly greater mass to the mesons and baryons where quarks occur, so values for quark masses cannot be measured...

together. In the Yukawa interaction a virtual particle, later called a meson, mediated a force between all nucleons, including protons and neutrons....

Bibcode:2022AnPhy.43868767B. doi:10.1016/j.aop.2022.168767. S2CID 119252778. Grossman, Yuval; Lipkin, Harry J. (1997). "Flavor oscillations from a spatially...

as well as the ordinary quark and lepton, and thus also anything made of mesons, which are unstable particles made up of a quark and an antiquark. In the...

participate in the residual strong force, which is mediated by particles known as mesons. The most familiar baryons are protons and neutrons, both of which contain...

antiquarks in mesons. The two parties had assigned the discovered meson two different symbols, J and ψ; thus, it became formally known as the J/ψ meson. The discovery...