what is meant by quarks
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The quarks are the massive elemental fermions that interact strongly forming nuclear matter and certain types of particles called hadrons. Together with leptons, they are the fundamental constituents of baryonic matter. Several species of quarks combine specifically to form subatomic particles such as protons and neutrons.
Quarks are the only fundamental particles that interact with the four fundamental forces. They are 1/2 spin particles, and are Dirac fermions so their corresponding antiparticles exist.
There are six different types of Quarks each "carrier" of a quantum number of the model of quarks.
The quarks s, c, t and b are massive enough to decay into other quarks by weak interaction. The quarks u and d are the most stable.
A central but untested hypothesis is that the Quarks can not be observed free but confined in groups, a phenomenon called confinement of color.
The whole spin (boson) hadrons are classified as mesons and spin sementers (fermions) as baryons. The observed mesons are consistent with a composition of (a quark-antiquark pair) and baryons as the composition of three quarks or antiquarks.
Gell-Mann in 1964 and Zweig proposed hypothetical hadrons composed of more than three quarks such as tetraquarts (with four quarks), pentaquarks (with five quarks), and hadron molecules. This would be a direct consequence of the confinement of color. In 2003 experimental evidence was found for a new association of five Quarks, the pentaquark, whose evidence, in principle controversial, was demonstrated by the Large Hadron Collider in July 2015.
The quarks are the massive elemental fermions that interact strongly forming nuclear matter and certain types of particles called hadrons. Together with leptons, they are the fundamental constituents of baryonic matter. Several species of quarks combine specifically to form subatomic particles such as protons and neutrons.
Quarks are the only fundamental particles that interact with the four fundamental forces. They are 1/2 spin particles, and are Dirac fermions so their corresponding antiparticles exist.
There are six different types of Quarks each "carrier" of a quantum number of the model of quarks.
The quarks s, c, t and b are massive enough to decay into other quarks by weak interaction. The quarks u and d are the most stable.
A central but untested hypothesis is that the Quarks can not be observed free but confined in groups, a phenomenon called confinement of color.
The whole spin (boson) hadrons are classified as mesons and spin sementers (fermions) as baryons. The observed mesons are consistent with a composition of (a quark-antiquark pair) and baryons as the composition of three quarks or antiquarks.
Gell-Mann in 1964 and Zweig proposed hypothetical hadrons composed of more than three quarks such as tetraquarts (with four quarks), pentaquarks (with five quarks), and hadron molecules. This would be a direct consequence of the confinement of color. In 2003 experimental evidence was found for a new association of five Quarks, the pentaquark, whose evidence, in principle controversial, was demonstrated by the Large Hadron Collider in July 2015.
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the quarks are the massive elemental fermions that interact strongly forming nucleur material and certain type of particles called hadrons
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