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  • What exactly makes Mesons unstable? - Physics Forums
    For the mesons, the electroweak interactions always exist between quarks and antiquarks of the same or different type For the same type of quark, we have electromagnetic interactions ##\bar{q} A_\mu \gamma^\mu q##, while for different quarks, there are weak interactions ##\bar{q} W_\mu \gamma^\mu q'##
  • Particle Physics: Why are Mesons a type of Gauge Boson?
    Hadrons are further sub-classified into mesons (quark plus antiquark) and baryons (three quarks or three antiquarks) All leptons are fermions All gauge bosons are bosons Mesons are all bosons because they're two-quark combinations, quarks have spin 1 2, and two spin 1 2 particles can combine to give only total spin 0 or 1
  • Meson vs. Baryon: Quark Interactions and Fermions Bosons
    Composite particles such as mesons and helium-4 atoms are considered bosons because they contain an even number of fermions and thus have integer spin This is in contrast to particles such as protons, neutrons, and helium-3 atoms which contain an odd number of fermions and have half-integer spin
  • Whats the reason behind the existence of mesons? - Physics Forums
    Mesons are typically formed when quarks antiquarks are involved in collisions If one quark is impelled away from the other particles, QCD colour confinement prevents its escape As the quark tries to escape, the strength of the colour force between the quark and the remaining particles (of net opposite colour) does not decay by the inverse
  • Why Dont Quarks and Antiquarks Annihilate Each Other in Mesons?
    1)mesons are made of a quark and an anitquark, why don't they annihalate each other? 2)what is residual strong force all about, if each proton and neutron are colour neutral then why does the nucleus stick together? 3)also what are neutrinos, and i mean all of them tau electron and muon, and what do they do and how are they made
  • Psi Meson Decay Modes: Spin, Parity, Quark Content More
    Homework Statement (a) Explain spin and parity of mesons (b) State their quark content (c) Draw a feynman diagram of J psi decay (d) Why doesn't ##\chi## Insights Blog -- Browse All Articles -- Physics Articles Physics Tutorials Physics Guides Physics FAQ Math Articles Math Tutorials Math Guides Math FAQ Education Articles Education Guides
  • Mesons: Particles of the Subatomic World - Physics Forums
    Mesons are particles that are constituted out of two quarks(a quark and anti-quark) These mesons are not all force carriers The lightest meson, which is easiest to make since it corresponds to the least amount of energy via E =mc², is called the pion
  • Meson: Quark-Antiquark Pairs and Spin Questions - Physics Forums
    hi, my notes say that a meson is a quark anti quark pair and that all quarks are spin half fermions fair enough it then says that mesons are bosons with spin 0, 1 \\hbar, 2 \\hbar \\dots this i don't get apparently, antimatter has the same mass, opposite electric charge and also the
  • How are meson spins worked out? - Physics Forums
    I should warn you that mesons are much nastier than positronium Although on the surface, you might think that they're exactly the same, mesons are bounded by gluons And the gluons that are involved are NON-perturbative (meaning that the strong nuclear force inside the pion is "infinitely strong" in the sense of perturbation theory)
  • Why Dont Neutral Mesons Annihilate Immediately? - Physics Forums
    I have learned the basics of annhilation, particle and anti-particle, etc, but I have learned that neutral mesons, such as the pi neutral meson are made of a quark, (e g up), and its corresponding anti-particle, (e g anti-up), so why do the particles join together to form the meson, shouldn't the particles annhilate?





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