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Related to Mesons: Leptons, Quarks, Baryons


 (mĕz′ŏn′, mĕs′-, mē′zŏn′, -sŏn′, mā′-)
Any of a class of subatomic particles that are both hadrons and bosons, are composed of a quark and an antiquark, participate in strong interactions, and have masses generally intermediate between those of leptons and baryons.

[meso- + -on.]

me·son′ic (mĕ-zŏn′ĭk, -sŏn′, mē-, mā-) adj.


(Atomic Physics) any of a group of elementary particles, such as a pion or kaon, that usually has a rest mass between those of an electron and a proton, and an integral spin. They are responsible for the force between nucleons in the atomic nucleus. Former name: mesotron See also muon
[C20: from meso- + -on]
meˈsonic, ˈmesic adj


(ˈmɛz ɒn, ˈmɛs-, ˈmeɪ zɒn, -sɒn)

any strongly interacting boson, as the pion or kaon.
me•son′ic, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.meson - an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0
b-meson - exceedingly short-lived meson
boson - any particle that obeys Bose-Einstein statistics but not the Pauli exclusion principle; all nuclei with an even mass number are bosons
hadron - any elementary particle that interacts strongly with other particles
J particle, psi particle - a neutral meson with a large mass
K particle, kaon, kappa-meson, k-meson - an unstable meson produced as the result of a high-energy particle collision
pi-meson, pion - a meson involved in holding the nucleus together; produced as the result of high-energy particle collision


[ˈmiːzɒn] Nmesón m


n (Phys) → Meson nt
References in periodicals archive ?
It seems that the super-conducting magnet (two opposing factors) somehow polarizes the electron, probably through some new kind of unifying electo-magneton coupling interaction, forming the end-to-end linear chain of the polarized electrons within the magnet, turning them into particles like the neutrinos, or mesons or even photons with the unbalanced opposite polarity emerging at the two ends of the magnet
The observations at LHCb and CMS were so rare that Bs mesons only decayed into two muons about three times in every billion collisions.
The topics include exotic nuclei with open heavy flavor mesons, baryon anti-decuplet in the chiral quark-soliton model, chiral properties of baryons, exotic cluster structures excited by two neutron transfers, coherent pions from neutrino scattering off nuclei, the present status of microscopic theory for complex nucleus-nucleus interactions, and nuclear and particle physics with ultra-intense lasers.
Mesons and Baryons; systematiztion and methods of analysis.
There are two unambiguous pieces of evidence for CP- and I-violation: the forbidden decay modes of neutral K and B mesons and the excess of the baryonic matter over antimatter in the present universe.
A Monte Carlo simulation was produced to better understand CLAS's backward angle detection of K mesons produced from the phi meson photoproduction process.
B Mesons, abundant in the moments after the Big Bang, survive for just over a trillionth of a second and can only be studied in particle accelerators.
This particular zone, known as the "B-Factory," is a 1,200 ton particle detector used in scientific experiments studying distinctions between the decays of sub-atomic B mesons and their anti-matter counterparts, which may in turn explain why the universe favored the existence of matter over anti-matter following the Big Bang.
During experiments conducted between June last year and July this year, the physicists found evidence suggesting that anti-B mesons decay earlier than B mesons, which would lend weight to the theory that particles and antiparticles are not completely symmetrical, the researchers say.
At the crossing point, some of these particles collide, producing tiny bursts of pure energy that materialize almost immediately as other subatomic particles called B mesons.
For 15 or 20 billion years God has been guiding the mesons.
The energies of the beams soon will be precisely tuned to produce large quantities of heavy subatomic particles known as B mesons.