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Since then, the particle has been shown to behave, interact, and decay in many of the ways predicted for Higgs particles by the Standard Model, as well as having even parity and zero spin, two fundamental attributes of a Higgs boson. This also means it is the first elementary scalar particle discovered in nature.
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† ^ Particle has not yet been observed. [a] ^ The masses of the proton and neutron are known with much better precision in daltons (Da) than in MeV/c 2. In atomic mass units, the mass of the proton is 1.007 276 466 5789 (83) Da [28] whereas that of the neutron is 1.008 664 916 06 (40) Da. [29] [b] ^ At least 10 35 years. See proton decay.
Mesons named with the letter "f" are scalar mesons (as opposed to a pseudo-scalar meson), and mesons named with the letter "a" are axial-vector mesons (as opposed to an ordinary vector meson) a.k.a. an isoscalar vector meson, while the letters "b" and "h" refer to axial-vector mesons with positive parity, negative C-parity, and quantum numbers I G of 1 + and 0 − respectively.
Particle physics (12 C, 131 P) S. Subatomic particles (8 C, 10 P) T. Particle technology (2 C, 9 P) Pages in category "Particles" The following 6 pages are in this ...
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In particle physics, an elementary particle or fundamental particle is a subatomic particle that is not composed of other particles. [1] The Standard Model presently recognizes seventeen distinct particles—twelve fermions and five bosons .
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