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iopscience.iop.org | ||
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www.nature.com
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| | | | | The theory of the strong force, quantum chromodynamics, describes the proton in terms of quarks and gluons. The proton is a state of two up quarks and one down quark bound by gluons, but quantum theory predicts that in addition there is an infinite number of quark-antiquark pairs. Both light and heavy quarks, whose mass is respectively smaller or bigger than the mass of the proton, are revealed inside the proton in high-energy collisions. However, it is unclear whether heavy quarks also exist as a part o... | |
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www.mdpi.com
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| | | | | Symmetry, an international, peer-reviewed Open Access journal. | |
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www.mdpi.com
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| | | | | Axioms, an international, peer-reviewed Open Access journal. | |
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www.wevideo.com
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| | | Redefine learning in K-12 and higher ed with flipped learning and WeVideo. Transform your teaching approach today! | ||
