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Scalar meson information


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. The first known scalar mesons have been observed since the late 1950s, with observations of numerous light states and heavier states proliferating since the 1980s. Scalar mesons are most often observed in proton-antiproton annihilation, radiative decays of vector mesons, and meson-meson scattering.

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Scalar meson

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a scalar meson is a meson with total spin 0 and even parity (usually noted as JP=0+). Compare to pseudoscalar meson. The first known scalar mesons have...

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Vector meson

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spectroscopy of vector mesons tends to show nearly pure states of constituent quark flavors, whereas pseudovector mesons and scalar mesons tend to be expressed...

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Meson

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

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Eta and eta prime mesons

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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...

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List of mesons

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This list is of all known and predicted scalar, pseudoscalar and vector mesons. See list of particles for a more detailed list of particles found in particle...

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Scalar boson

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Englert. Various known composite particles are scalar bosons, e.g. the alpha particle and scalar mesons. The φ4-theory or quartic interaction is a popular...

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Pion

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of pions are considerably less than that of the other mesons, such as the scalar or vector mesons. If their current quarks were massless particles, it...

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Pseudoscalar meson

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250–300 MeV/c2. List of mesons Vector meson Pseudovector meson Pseudoscalar boson Compare the definition of the pseudoscalar meson to the scalar meson. Because the...

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Kaon

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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...

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Exotic meson

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physics, exotic mesons are mesons that have quantum numbers not possible in the quark model; some proposals for non-standard quark model mesons could be: glueballs...

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D meson

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

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Scalar field

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and physics, a scalar field is a function associating a single number to every point in a space – possibly physical space. The scalar may either be a...

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Pseudovector meson

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pseudovector meson or axial vector meson is a meson with total spin 1 and even parity (+) (usually noted as J P = 1+ ). Compare to a vector meson, which has...

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F meson

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D meson. Term for scalar mesons with JPC 0++ consisting of light quarks. This disambiguation page lists articles associated with the title F meson. If...

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B meson

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In particle physics, B mesons are mesons composed of a bottom antiquark and either an up ( B+ ), down ( B0 ), strange ( B0 s) or charm quark ( B+ c)....

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Rho meson

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pions and omega mesons, the rho meson carries the nuclear force within the atomic nucleus. After the pions and kaons, the rho mesons are the lightest...

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Phi meson

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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...

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Yukawa interaction

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\psi }   (scalar)   or   g ψ ¯ i γ 5 ϕ ψ {\displaystyle g\,{\bar {\psi }}\,i\,\gamma ^{5}\,\phi \,\psi }   (pseudoscalar). The action for a meson field ϕ...

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Chiral symmetry breaking

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mesons, 1 − {\displaystyle 1^{-}} , such as rho meson, and the 0 + {\displaystyle 0^{+}} scalars mesons and 1 + {\displaystyle 1^{+}} vector mesons are...

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Upsilon meson

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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...

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Omega meson

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The omega meson ( ω ) is a flavourless meson formed from a superposition of an up quark–antiquark and a down quark–antiquark pair. It is part of the vector...

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Muon

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the two different types of mesons after the second meson was discovered, the initial mesotron particle was renamed the mu meson (the Greek letter μ [mu]...

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Charm quark

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

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Glueball

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difficult to identify in particle accelerators, because they mix with ordinary meson states. In pure gauge theory, glueballs are the only states of the spectrum...

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Sigma model

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comes from a field in their model corresponding to a spinless meson called σ, a scalar meson introduced earlier by Julian Schwinger. The model served as...

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Hadron

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

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Timeline of atomic and subatomic physics

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Hideki Yukawa presents a theory of the nuclear force and predicts the scalar meson 1935 Albert Einstein, Boris Podolsky, and Nathan Rosen put forth the...

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T meson

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T mesons are hypothetical mesons composed of a top quark and one additional subatomic particle. The second subatomic particle can be either an up quark...

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