Back Mesó omega Catalan Ω-Meson German Méson oméga French Mesone omega Italian オメガ中間子 Japanese Омега-мезон Macedonian Méson omega Portuguese Омега-мезон Russian Омега-мезон Ukrainian
| Composition | |
|---|---|
| Statistics | Bosonic |
| Family | Mesons |
| Interactions | Strong, weak, electromagnetic, gravity |
| Symbol | ω |
| Antiparticle | Self |
| Theorized | Yoichiro Nambu[1] (1957) |
| Discovered | Lawrence Berkeley National Laboratory (1961)[2][3] |
| Types | 1 |
| Mass | 782.66±0.13 MeV/c2 |
| Mean lifetime | (7.58±0.11)×10−23 s |
| Decays into | π+ + π0 + π− or π0 + γ |
| Electric charge | 0 e |
| Spin | 1 |
| Isospin | 0 |
| Hypercharge | 0 |
| Parity | −1 |
| C parity | −1 |
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 meson nonet[4][5] and mediates the nuclear force along with pions and rho mesons.
- ^ Nambu, Yoichiro (April 25, 1957). "Possible Existence of a Heavy Neutral Meson". Physical Review. 106 (6): 1366–1367. Bibcode:1957PhRv..106.1366N. doi:10.1103/PhysRev.106.1366.
- ^ Maglić, B. C.; Alvarez, L. W.; Rosenfeld, A. H.; Stevenson, M. L. (August 14, 1961). "Evidence for a T=0 three-pion resonance". Physical Review Letters. 7 (5): 178–182. Bibcode:1961PhRvL...7..178M. doi:10.1103/physrevlett.7.178. S2CID 121570977.
- ^ Maglich, B. (1976). "Discovery of omega meson-first neutral vector meson: one researcher's personal account - Discovery story". Advanced Experimental Physics. 5: 79–105.
- ^ Gell-Mann, M. (March 15, 1961). "The Eightfold Way: A Theory of Strong Interaction Symmetry" (TID-12608). Pasadena, CA: California Inst. of Tech., Synchrotron Laboratory: 24. doi:10.2172/4008239.
{{cite journal}}: Cite journal requires|journal=(help) - ^ Ne'eman, Y. (August 1961). "Derivation of Strong Interactions from a Gauge Invariance". Nuclear Physics. 26 (2). Amsterdam: North-Ho lland Publishing Co.: 222–229. Bibcode:1961NucPh..26..222N. doi:10.1016/0029-5582(61)90134-1.
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