meson mass

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• Meson — Mes on, n. [NL., fr. Gr. me son middle, neut. of me sos, a., middle.] 1. (Anat.) The mesial plane dividing the body of an animal into similar right and left halves. The line in which it meets the dorsal surface has been called the dorsimeson, and …   The Collaborative International Dictionary of English

• meson — (n.) subatomic particle, 1939, from Gk. mesos middle (see MEDIAL (Cf. medial) (adj.)) + subatomic particle suffix ON (Cf. on). Earlier mesotron (1938). So called for being intermediate in mass between protons and electrons …   Etymology dictionary

• Meson — Mesons Mesons of spin 0 form a nonet Composition Composite Quarks and antiquarks Statistics Bosonic …   Wikipedia

• meson — mesonic, adj. /mee zon, son, mez on, mes /, n. Physics. any hadron, or strongly interacting particle, other than a baryon. Mesons are bosons, having spins of 0, 1, 2, ..., and, unlike baryons, do not obey a conservation law. Cf. quark model.… …   Universalium

• meson — An elementary particle having a rest mass intermediate in value between the mass of an electron and that of a proton. [G. neuter of mesos, middle] * * * me·son mez .än, mēz , mēs , mes n any of a group of unstable element …   Medical dictionary

• meson — mes·on || miːzÉ‘n /zÉ’n n. elementary particle having a mass between that of an electron and a proton, mesotron (Physics) …   English contemporary dictionary

• meson — [ mi:zɒn, mɛzɒn] noun Physics a subatomic particle, intermediate in mass between an electron and a proton, that transmits the strong interaction binding nucleons together. Derivatives mesonic mɪ zɒnɪk adjective Origin 1930s: from meso + on …   English new terms dictionary

• meson —   n. unstable subatomic particle with a mass between that of an electron and a photon, found in cosmic radiation …   Dictionary of difficult words

• mu meson — Meson Mes on, n. [NL., fr. Gr. me son middle, neut. of me sos, a., middle.] 1. (Anat.) The mesial plane dividing the body of an animal into similar right and left halves. The line in which it meets the dorsal surface has been called the… …   The Collaborative International Dictionary of English

• Scalar meson — In high energy physics, a scalar meson is a meson with total spin 0 and even parity (usually noted as JP =0+). Compare to pseudoscalar meson.These mesons are most often observed in proton antiproton annihilation, radiative decays of vector mesons …   Wikipedia

• Pseudoscalar meson — In high energy physics, a pseudoscalar meson is a meson with total spin 0 and odd parity (usually noted as JP =0−). Compare to scalar meson.Among all of the mesons known to exist, the pseudoscalars are perhaps the most well known in a sense. The… …   Wikipedia