Teilchenname | Symbol | Quarks | Masse (MeV/c2) | Lebensdauer (s) | Hauptzerfälle | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Nukleon / Proton[4] | p | uud | 938,272 081 3(5 8) (a) | 1⁄2 | 1⁄2+ | +1 | 0 | 0 | 0 | stabil (b) | — |
Nukleon / Neutron[5] | n | udd | 939,565 413 3(5 8) (a) | 1⁄2 | 1⁄2+ | 0 | 0 | 0 | 0 | 880,2(1,0) (c) | p + e⁻ + νe |
Λ-Baryon[6] | Λ | uds | 1115,683(6) | 0 | 1⁄2+ | 0 | −1 | 0 | 0 | 2,631(20) · 10−10 | 64 %: p + π− 36 %: n + π0 |
Σ-Baryon[7] | Σ+ | uus | 1189,37(7) | 1 | 1⁄2+ | +1 | −1 | 0 | 0 | 8,018(26) · 10−11 | 51 %: p + π0 48 %: n + π+ |
Σ-Baryon[8] | Σ0 | uds | 1192,642(24) | 1 | 1⁄2+ | 0 | −1 | 0 | 0 | 7,4(7) · 10−20 | 100 %: Λ + γ |
Σ-Baryon[9] | Σ− | dds | 1197,449(30) | 1 | 1⁄2+ | −1 | −1 | 0 | 0 | 1,479(11) · 10−10 | 99,85 %: n + π− |
Ξ-Baryon[10] | Ξ0 | uss | 1314,86(20) | 1⁄2 | 1⁄2+ | 0 | −2 | 0 | 0 | 2,90(9) · 10−10 | 99,52 %: Λ + π0 |
Ξ-Baryon[11] | Ξ− | dss | 1321,71(7) | 1⁄2 | 1⁄2+ | −1 | −2 | 0 | 0 | 1,639(15) · 10−10 | 99,89 %: Λ + π− |
Λc-Baryon[12] | Λc+ | udc | 2286,46(14) | 0 | 1⁄2+ | +1 | 0 | +1 | 0 | 2,00(6) · 10−13 | siehe Zerfallsmoden Λc+ (PDF; 212 kB) |
Σc-Baryon[13] | Σc++ oder Σc(2455)++ | uuc | 2453,97(14) | 1 | 1⁄2+ | +2 | 0 | +1 | 0 | 3,48(40) · 10−22 (d) | Λc+ + π+ |
Σc-Baryon[13] | Σc+ oder Σc(2455)+ | udc | 2452,9(4) | 1 | 1⁄2+ | +1 | 0 | +1 | 0 | >1,4 · 10−22 (d) | Λc+ + π0 |
Σc-Baryon[13] | Σc0 oder Σc(2455)0 | ddc | 2453,75(14) | 1 | 1⁄2+ | 0 | 0 | +1 | 0 | 3,60(50) · 10−22 (d) | Λc+ + π− |
Ξc-Baryon[14] | Ξc+ | usc | 2467,93(18) | 1⁄2 | 1⁄2+ | +1 | −1 | +1 | 0 | 4,42(26) · 10−13 | siehe Zerfallsmoden Ξc+ (PDF; 113 kB) |
Ξc-Baryon[15] | Ξc0 | dsc | 2470,91(25) | 1⁄2 | 1⁄2+ | 0 | −1 | +1 | 0 | siehe Zerfallsmoden Ξc0 (PDF; 54 kB) | |
Ξ′c-Baryon[16] | Ξ′c+ | usc | 2578,4(5) | 1⁄2 | 1⁄2+ | +1 | −1 | +1 | 0 | ? | Ξc+ + γ (beobachtet) |
Ξ′c-Baryon[17] | Ξ′c0 | dsc | 2579,2(5) | 1⁄2 | 1⁄2+ | 0 | −1 | +1 | 0 | ? | Ξc0 + γ (beobachtet) |
Ωc-Baryon[18] | Ωc0 | ssc | 2695,2(1,7) | 0 | 1⁄2+ | 0 | −2 | +1 | 0 | 6,9(1,2) · 10−14 | siehe Zerfallsmoden Ωc0 (PDF; 92 kB) |
Ξcc-Baryon[19] | Ξcc++ | ucc | 3621,2(7) | 1⁄2 | 1⁄2+ | +2 | 0 | +2 | 0 | 2,56(27) · 10−13 | Λc+ + K− + π+ + π+ (beobachtet)[20][21] |
Ξcc-Baryon (e) | Ξcc+ | dcc | ? | 1⁄2 | 1⁄2+ | +1 | 0 | +2 | 0 | ? | ? |
Ωcc-Baryon (e) | Ωcc+ | scc | ? | 0 | 1⁄2+ | +1 | −1 | +2 | 0 | ? | ? |
Λb-Baryon[22] | Λb0 | udb | 5619,60(17) | 0 | 1⁄2+ | 0 | 0 | 0 | −1 | 1,470(10) · 10−12 | siehe Zerfallsmoden Λb0 (PDF; 80 kB) |
Σb-Baryon[23] | Σb+ | uub | 5810,56(25) | 1 | 1⁄2+ | +1 | 0 | 0 | −1 | <10−21 s | Λb0 + π+ |
Σb-Baryon (e) | Σb0 | udb | ? | 1 | 1⁄2+ | 0 | 0 | 0 | −1 | ? | ? |
Σb-Baryon[23] | Σb− | ddb | 5815,64(27) | 1 | 1⁄2+ | −1 | 0 | 0 | −1 | <10−21 s | Λb0 + π− |
Ξb-Baryon[24] | Ξb0 | usb | 5791,9(5) | 1⁄2 | 1⁄2+ | 0 | −1 | 0 | −1 | 1,479(31) · 10−12 | siehe Zerfallsmoden Ξb (PDF; 46 kB) |
Ξb-Baryon[24] | Ξb− | dsb | 5797,0(9) | 1⁄2 | 1⁄2+ | −1 | −1 | 0 | −1 | 1,571(40) · 10−12 | siehe Zerfallsmoden Ξb (PDF; 46 kB) |
Ξ′b-Baryon (e) | Ξ′b0 | usb | ? | 1⁄2 | 1⁄2+ | 0 | −1 | 0 | −1 | ? | ? |
Ξ′b-Baryon[25] | Ξ′b− | dsb | 5935,02(5) | 1⁄2 | 1⁄2+ | −1 | −1 | 0 | −1 | ? | Ξb0 + π− |
Ωb-Baryon[26] | Ωb− | ssb | 6046,1(1,7) | 0 | 1⁄2+ | −1 | −2 | 0 | −1 | 1,64(18) · 10−12 | Ω− + J/ψ (beobachtet) |
Ξcb-Baryon (e) | Ξcb+ | ucb | ? | 1⁄2 | 1⁄2+ | +1 | 0 | +1 | −1 | ? | ? |
Ξcb-Baryon (e) | Ξcb0 | dcb | ? | 1⁄2 | 1⁄2+ | 0 | 0 | +1 | −1 | ? | ? |
Ξ′cb-Baryon (e) | Ξ′cb+ | ucb | ? | 1⁄2 | 1⁄2+ | +1 | 0 | +1 | −1 | ? | ? |
Ξ′cb-Baryon (e) | Ξ′cb0 | dcb | ? | 1⁄2 | 1⁄2+ | 0 | 0 | +1 | −1 | ? | ? |
Ωcb-Baryon (e) | Ωcb0 | scb | ? | 0 | 1⁄2+ | 0 | −1 | +1 | −1 | ? | ? |
Ω′cb-Baryon (e) | Ω′cb0 | scb | ? | 0 | 1⁄2+ | 0 | −1 | +1 | −1 | ? | ? |
Ωccb-Baryon (e) | Ωccb+ | ccb | ? | 0 | 1⁄2+ | +1 | 0 | +2 | −1 | ? | ? |
Ξbb-Baryon (e) | Ξbb0 | ubb | ? | 1⁄2 | 1⁄2+ | 0 | 0 | 0 | −2 | ? | ? |
Ξbb-Baryon (e) | Ξbb− | dbb | ? | 1⁄2 | 1⁄2+ | −1 | 0 | 0 | −2 | ? | ? |
Ωbb-Baryon (e) | Ωbb− | sbb | ? | 0 | 1⁄2+ | −1 | −1 | 0 | −2 | ? | ? |
Ωcbb-Baryon (e) | Ωcbb0 | cbb | ? | 0 | 1⁄2+ | 0 | 0 | +1 | −2 | ? | ? |