قائمة الباريونات
قائمة الباريونات > JP = 1⁄2+ باريونات

| Particle name | Symbol | Quark content | كتلة السكون (MeV/c2) | ايزوسبين | JP | شحنة كهربائية e | غرابة (عدد كم) | سحر (عدد كم) | قعرية (عدد كم) | تضاؤل أسي (ثانية) | Commonly decays to |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| نوية (ذرة)/بروتون | p / p+ / N+ | uud | 0,938.272 029 ± 0.000 080 | 0.5 !1⁄2 | 0.5 !1⁄2+ | 1 !+1 | 0 | 0 | 0 | +10 !Stable | Unobserved |
| نوية (ذرة)/نيوترون | n / n0 / N0 | udd | 0,939.565 360 ± 0.000 081 | 0.5 !1⁄2 | 0.5 !1⁄2+ | 0 | 0 | 0 | 0 | +2 !8.857 ± 0.008 × 10+2 | p+ + e− + νe |
| Lambda | Λ0 | uds | 1,115.683 ± 0.006 | 0 | 0.5 !1⁄2+ | 0 | -1 !−1 | 0 | 0 | -10.2 !2.631 ± 0.020 × 10−10 | p+ + π− or   n0 + π0 |
| charmed Lambda | Λ+c | udc | 2,286.46 ± 0.14 | 0 | 0.5 !1⁄2+ | 1 !+1 | 0 | 1 !+1 | 0 | -13.2 !2.00 ± 0.06 × 10−13 | See Λ+c decay modes |
| bottom Lambda | Λ0b | udb | 5,620.2 ± 1.6 | 0 | 0.5 !1⁄2+ | 0 | 0 | 0 | -1 !−1 | -12.3 ! 1.409+0.055 −0.054 × 10−12 | See Λ0b decay modes |
| سيغما باريون  ‏ | Σ+ | uus | 1,189.37 ± 0.07 | 1 | 0.5 !1⁄2+ | 1 !+1 | -1 !−1 | 0 | 0 | -11.1 !8.018 ± 0.026 × 10−11 | p+ + π0 or   n0 + π+ |
| Sigma | Σ0 | uds | 1,192.642 ± 0.024 | 1 | 0.5 !1⁄2+ | 0 | -1 !−1 | 0 | 0 | -20.1 !7.4 ± 0.7 × 10−20 | Λ0 + γ |
| Sigma | Σ− | dds | 1,197.449 ± 0.030 | 1 | 0.5 !1⁄2+ | -1 !−1 | -1 !−1 | 0 | 0 | -10.4 !1.479 ± 0.011 × 10−10 | n0 + π− |
| charmed Sigma | Σ++c(2455) | uuc | 2,454.02 ± 0.18 | 1 | 0.5 !1⁄2+ | 2 !+2 | 0 | 1 !+1 | 0 | -22.1 !3.0 ± 0.4 × 10−22 | Λ+c + π+ |
| charmed Sigma | Σ+c(2455) | udc | 2,452.9 ± 0.4 | 1 | 0.5 !1⁄2+ | 1 !+1 | 0 | 1 !+1 | 0 | -22.3 !>1.4 × 10−22 | Λ+c + π0 |
| charmed Sigma | Σ0c(2455) | ddc | 2,453.76 ± 0.18 | 1 | 0.5 !1⁄2+ | 0 | 0 | 1 !+1 | 0 | -22.2 !3.0 ± 0.5 × 10−22 | Λ+c + π− |
| bottom Sigma | Σ+b(?) | uub | 5,807.8 ± 2.7 | 1 | 0.5 !1⁄2+ | 1 !+1 | 0 | 0 | -1 !−1 | Unknown | Λ0b + π+ |
| bottom Sigma | Σ0b(?) | udb | Unknown | 1 | 0.5 !1⁄2+ | 0 | 0 | 0 | -1 !−1 | Unknown | Unknown |
| bottom Sigma | Σ−b(?) | ddb | 5,815.2 ± 2.0 | 1 | 0.5 !1⁄2+ | -1 !−1 | 0 | 0 | -1 !−1 | Unknown | Λ0b + π− |
| Xi | Ξ0 | uss | 1,314.86 ± 0.20 | 0.5 !1⁄2 | 0.5 !1⁄2+ | 0 | -2 !−2 | 0 | 0 | -10.1 !2.90 ± 0.09 × 10−10 | Λ0 + π0 |
| Xi | Ξ− | dss | 1,321.71 ± 0.07 | 0.5 !1⁄2 | 0.5 !1⁄2+ | -1 !−1 | -2 !−2 | 0 | 0 | -10.3 !1.639 ± 0.015 × 10−10 | Λ0 + π− |
| charmed Xi | Ξ+c | usc | 2,467.9 ± 0.4 | 0.5 !1⁄2 | 0.5 !1⁄2+ | 1 !+1 | -1 !−1 | 1 !+1 | 0 | -13.1 !4.42 ± 0.26 × 10−13 | See Ξ+c decay modes |
| charmed Xi | Ξ0c | dsc | 2,471.0 ± 0.4 | 0.5 !1⁄2 | 0.5 !1⁄2+ | 0 | -1 !−1 | 1 !+1 | 0 | -13.3 ! 1.12+0.13 −0.10 × 10−13 | See Ξ0c decay modes |
| charmed Xi prime | Ξ′+c | usc | 2,575.7 ± 3.1 | 0.5 !1⁄2 | 0.5 !1⁄2+ | 1 !+1 | -1 !−1 | 1 !+1 | 0 | Unknown | Ξ+c + γ (seen) |
| charmed Xi prime | Ξ′0c | dsc | 2,578.0 ± 2.9 | 0.5 !1⁄2 | 0.5 !1⁄2+ | 1 !+1 | -1 !−1 | 1 !+1 | 0 | Unknown | Ξ0c + γ (seen) |
| double charmed Xi | Ξ++cc | ucc | Unknown | 0.5 !1⁄2 | 0.5 !1⁄2+ | 2 !+2 | 0 | 2 !+2 | 0 | Unknown | Unknown |
| double charmed Xi | Ξ+cc | dcc | 3,518.9 ± 0.9 | 0.5 !1⁄2 | 0.5 !1⁄2+ | 1 !+1 | 0 | 2 !+2 | 0 | -14.2 !<3.3 × 10−14 | Λ+c + K− + π+ or   p+ + D+ + K− |
| bottom Xi  (or Cascade B) | Ξ0b | usb | Unknown | 0.5 !1⁄2 | 0.5 !1⁄2+ | 0 | -1 !−1 | 0 | -1 !−1 | -12.1 ! 1.42+0.28 −0.24 × 10−12 | See Ξb decay modes |
| bottom Xi (or Cascade B) | Ξ−b | dsb | 5,792.4 ± 3.0 | 0.5 !1⁄2 | 0.5 !1⁄2+ | -1 !−1 | -1 !−1 | 0 | -1 !−1 | -12.2 ! 1.42+0.28 −0.24 × 10−12 | See Ξb decay modes   (Ξ− + J/ψ was also seen) |
| bottom Xi prime | Ξ′0b | usb | Unknown | 0 | 0.5 !1⁄2+ | 0 | -1 !−1 | 0 | -1 !−1 | Unknown | Unknown |
| bottom Xi prime | Ξ′−b | dsb | Unknown | 0 | 0.5 !1⁄2+ | 0 | -1 !−1 | 0 | -1 !−1 | Unknown | Unknown |
| double bottom Xi | Ξ0bb | ubb | Unknown | 0.5 !1⁄2 | 0.5 !1⁄2+ | 0 | 0 | 0 | -2 !−2 | Unknown | Unknown |
| double bottom Xi | Ξ−bb | dbb | Unknown | 0.5 !1⁄2 | 0.5 !1⁄2+ | -1 !−1 | 0 | 0 | -2 !−2 | Unknown | Unknown |
| charmed bottom Xi | Ξ+cb | ucb | Unknown | 0.5 !1⁄2 | 0.5 !1⁄2+ | 1 !+1 | 0 | 1 !+1 | -1 !−1 | Unknown | Unknown |
| charmed bottom Xi | Ξ0cb | dcb | Unknown | 0.5 !1⁄2 | 0.5 !1⁄2+ | 0 | 0 | 1 !+1 | -1 !−1 | Unknown | Unknown |
| charmed bottom Xi prime | Ξ′+cb | ucb | Unknown | 0 | 0.5 !1⁄2+ | 1 !+1 | 0 | 1 !+1 | -1 !−1 | Unknown | Unknown |
| charmed bottom Xi prime | Ξ′0cb | dcb | Unknown | 0 | 0.5 !1⁄2+ | 1 !+1 | 0 | 1 !+1 | -1 !−1 | Unknown | Unknown |
| charmed Omega | Ω0c | ssc | 2,697.5 ± 2.6 | 0 | 0.5 !1⁄2+ | 0 | -2 !−2 | 1 !+1 | 0 | -14.1 !6.9 ± 1.2 × 10−14 | See Ω0c decay modes |
| bottom Omega | Ω−b | ssb | 6,165 ± 23 | 0 | 0.5 !1⁄2+ | -1 !−1 | -2 !−2 | 0 | -1 !−1 | -12.2 ! 1.13+0.55 −0.42 × 10−12 | (Ω− + J/ψ seen) |
| double charmed Omega | Ω+cc | scc | Unknown | 0 | 0.5 !1⁄2+ | 1 !+1 | -1 !−1 | 2 !+2 | 0 | Unknown | Unknown |
| charmed bottom Omega | Ω0cb | scb | Unknown | 0 | 0.5 !1⁄2+ | 0 | -1 !−1 | 1 !+1 | -1 !−1 | Unknown | Unknown |
| charmed bottom Omega prime | Ω′0cb | scb | Unknown | 0 | 0.5 !1⁄2+ | 0 | -1 !−1 | 1 !+1 | -1 !−1 | Unknown | Unknown |
| double bottom Omega | Ω−bb | sbb | Unknown | 0 | 0.5 !1⁄2+ | -1 !−1 | -1 !−1 | 0 | -2 !−2 | Unknown | Unknown |
| double charmed bottom Omega | Ω+ccb | ccb | Unknown | 0 | 0.5 !1⁄2+ | 1 !+1 | 0 | 2 !+2 | -1 !−1 | Unknown | Unknown |
| charmed double bottom Omega | Ω0cbb | قالب:جسيم دون ذريقالب:جسيم دون ذريقالب:جسيم دون ذري | Unknown | 0 | قالب:ترتيب+ | 0 | 0 | قالب:ترتيب | قالب:ترتيب | Unknown | Unknown |
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†قالب:ملاحظة Particle has not yet been observed.

[a] قالب:ملاحظة The masses of the بروتون and نيوترون are known with much better precision in وحدة كتل ذريةs (u) than in إلكترون فولت/c2, due to the relatively poorly known value of the شحنة أولية. In atomic mass unit, the mass of the proton is 1.007 276 466 88(13) وحدة كتل ذرية while that of the neutron is 1.008 664 915 60(55) وحدة كتل ذرية. 

[b] قالب:ملاحظة At least 1035 years. See proton decay.

[c] قالب:ملاحظة For نيوترونs; in most common nuclei, neutrons are stable.

[d] قالب:ملاحظة PDG reports the عامل الجودة (Γ). Here the conversion τ = قالب:كسر مائل is given instead. 

[e] قالب:ملاحظة The specific values of the name has not been decided yet, but will likely be close to (5810). 

[f] قالب:ملاحظة Some controversy exists about this data.

[g] قالب:ملاحظة This is actually a measurement of the average lifetime of b-baryons that decay to a jet containing a same sign ∓∓ pair. Presumably the mix is mainly , with some .