Ω粒子是一類重子,其組成不包含上夸克與下夸克。第一種Ω⁻於1964年發現,由3個奇夸克組成。
列表
粒子 | 符號 | 夸克 組成 |
靜質量 MeV/c2 |
JP | Q | S | C | B | 平均壽命 s |
衰變方式 |
---|---|---|---|---|---|---|---|---|---|---|
Omega | Ω⁻ | sss | 1672.45±0.29 | 3⁄2+ | −1 | −3 | 0 | 0 | 8.21±0.11×10−11 | |
Charmed Omega | Ω⁰c | ssc | 2697.5±2.6 | 1⁄2+ | 0 | −2 | +1 | 0 | 6.9±1.2×10−14 | |
Bottom Omega | Ω⁻b | ssb | 6054.4±6.8 | 1⁄2+ | −1 | −2 | 0 | −1 | 1.13±0.53×10−12 | |
Double charmed Omega† | Ω+cc | scc | 1⁄2+ | +1 | −1 | +2 | 0 | |||
Charmed bottom Omega† | Ω+cb | scb | 1⁄2+ | 0 | −1 | −1 | −1 | |||
Double bottom Omega† | Ω⁻bb | sbb | 1⁄2+ | −1 | −1 | 0 | −2 | |||
Triple charmed Omega† | Ω++ccc | ccc | 3⁄2+ | +2 | 0 | +3 | 0 | |||
Double charmed bottom Omega† | Ω+ccb | ccb | 1⁄2+ | +1 | 0 | +2 | −1 | |||
Charmed double bottom Omega† | Ω+cbb | cbb | 1⁄2+ | 0 | 0 | +1 | −2 | |||
Triple bottom Omega† | Ω⁻bbb | bbb | 3⁄2+ | −1 | 0 | 0 | −3 |
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