Partícula
Símbolo
Quarks
Spin
Masa en reposo S
C
B
Vida media Desintegraciones más importantes
Xi neutra
Ξ
0
{\displaystyle \mathrm {\Xi ^{0}} \,\!}
u
s
s
{\displaystyle \mathrm {uss} \,\!}
1
2
{\displaystyle {\begin{matrix}{\frac {1}{2}}\end{matrix}}}
1.314,83
−2
0
0
2,90·10-10
Ξ
0
→
Λ
0
+
π
0
99
,
52
%
Ξ
0
→
Σ
0
+
γ
0
,
33
%
{\displaystyle {\begin{matrix}{}_{\Xi ^{0}\,\rightarrow \,\Lambda ^{0}+\pi ^{0}}&{}_{99,52\%}\\{}_{\Xi ^{0}\,\rightarrow \,\Sigma ^{0}+\gamma }&{}_{0,33\%}\end{matrix}}}
Xi negativa
Ξ
−
{\displaystyle \mathrm {\Xi ^{-}} \,\!}
d
s
s
{\displaystyle \mathrm {dss} \,\!}
1
2
{\displaystyle {\begin{matrix}{\frac {1}{2}}\end{matrix}}}
1.321,31
−2
0
0
1,64·10-10
Ξ
−
→
Λ
0
+
π
−
99
,
88
%
{\displaystyle {\begin{matrix}{}_{\Xi ^{-}\,\rightarrow \,\Lambda ^{0}+\pi ^{-}}&{}_{99,88\%}\end{matrix}}}
Omega
Ω
−
{\displaystyle \mathrm {\Omega ^{-}} \,\!}
s
s
s
{\displaystyle \mathrm {sss} \,\!}
3
2
{\displaystyle {\begin{matrix}{\frac {3}{2}}\end{matrix}}}
1.672,45
−3
0
0
8,21·10-11
Ω
−
→
Λ
0
+
K
−
67
,
8
%
Ω
−
→
Ξ
0
+
π
−
23
,
6
%
{\displaystyle {\begin{matrix}{}_{\Omega ^{-}\,\rightarrow \,\Lambda ^{0}+K^{-}}&{}_{67,8\%}\\{}_{\Omega ^{-}\,\rightarrow \,\Xi ^{0}+\pi ^{-}}&{}_{23,6\%}\\\end{matrix}}}
Omega encantada
Ω
c
0
{\displaystyle \mathrm {\Omega _{c}^{0}} \,\!}
s
s
c
{\displaystyle \mathrm {ssc} \,\!}
1
2
{\displaystyle {\begin{matrix}{\frac {1}{2}}\end{matrix}}}
2.697,5
−2
+1
0
6,90·10-14
Ω
c
0
→
Σ
+
+
K
−
+
K
−
+
π
+
?
?
%
Ω
c
0
→
Ξ
0
+
K
−
+
π
+
?
?
%
{\displaystyle {\begin{matrix}{}_{\Omega _{c}^{0}\,\rightarrow \,\Sigma ^{+}+K^{-}+K^{-}+\pi ^{+}}&{}_{??\,\%}\\{}_{\Omega _{c}^{0}\,\rightarrow \,\Xi ^{0}+K^{-}+\pi ^{+}}&{}_{??\,\%}\\\end{matrix}}}
Xi positiva encantada
Ξ
c
+
{\displaystyle \mathrm {\Xi _{c}^{+}} \,\!}
u
s
c
{\displaystyle \mathrm {usc} \,\!}
1
2
{\displaystyle {\begin{matrix}{\frac {1}{2}}\end{matrix}}}
2.468
−1
+1
0
4,42·10-13
Ξ
c
+
→
Ξ
0
+
π
+
+
π
0
?
?
%
Ξ
c
+
→
Ξ
0
+
e
+
+
ν
e
?
?
%
{\displaystyle {\begin{matrix}{}_{\Xi _{c}^{+}\,\rightarrow \,\Xi ^{0}+\pi ^{+}+\pi ^{0}}&{}_{??\,\%}\\{}_{\Xi _{c}^{+}\,\rightarrow \,\Xi ^{0}+e^{+}+\nu _{e}}&{}_{??\,\%}\\\end{matrix}}}
Xi neutra encantada
Ξ
c
0
{\displaystyle \mathrm {\Xi _{c}^{0}} \,\!}
d
s
c
{\displaystyle \mathrm {dsc} \,\!}
1
2
{\displaystyle {\begin{matrix}{\frac {1}{2}}\end{matrix}}}
2.471
−1
+1
0
1,12·10-13
Ξ
c
0
→
p
+
K
−
+
K
−
+
π
+
?
?
%
Ξ
c
0
→
Λ
0
+
K
S
0
?
?
%
{\displaystyle {\begin{matrix}{}_{\Xi _{c}^{0}\,\rightarrow \,p+K^{-}+K^{-}+\pi ^{+}}&{}_{??\,\%}\\{}_{\Xi _{c}^{0}\,\rightarrow \,\Lambda ^{0}+K_{S}^{0}}&{}_{??\,\%}\\\end{matrix}}}
Lambda neutra
Λ
0
{\displaystyle \mathrm {\Lambda ^{0}} \,\!}
u
d
s
{\displaystyle \mathrm {uds} \,\!}
1
2
{\displaystyle {\begin{matrix}{\frac {1}{2}}\end{matrix}}}
1.115,68
−1
0
0
2,63·10-10
Λ
0
→
p
+
π
−
63
,
9
%
Λ
0
→
n
+
π
0
35
,
8
%
{\displaystyle {\begin{matrix}{}_{\Lambda ^{0}\,\rightarrow \,p+\pi ^{-}}&{}_{63,9\%}\\{}_{\Lambda ^{0}\,\rightarrow \,n+\pi ^{0}}&{}_{35,8\%}\end{matrix}}}
Sigma positiva
Σ
+
{\displaystyle \mathrm {\Sigma ^{+}} \,\!}
u
u
s
{\displaystyle \mathrm {uus} \,\!}
1
2
{\displaystyle {\begin{matrix}{\frac {1}{2}}\end{matrix}}}
1.189,37
−1
0
0
8,01·10-11
Σ
+
→
p
+
π
0
51
,
57
%
Σ
+
→
n
+
π
+
48
,
31
%
{\displaystyle {\begin{matrix}{}_{\Sigma ^{+}\,\rightarrow \,p+\pi ^{0}}&{}_{51,57\%}\\{}_{\Sigma ^{+}\,\rightarrow \,n+\pi ^{+}}&{}_{48,31\%}\end{matrix}}}
Sigma neutra
Σ
0
{\displaystyle \mathrm {\Sigma ^{0}} \,\!}
u
d
s
{\displaystyle \mathrm {uds} \,\!}
1
2
{\displaystyle {\begin{matrix}{\frac {1}{2}}\end{matrix}}}
1.192,64
−1
0
0
7,4·10-20
Σ
0
→
Λ
0
+
γ
100
%
{\displaystyle {\begin{matrix}{}_{\Sigma ^{0}\,\rightarrow \,\Lambda ^{0}+\gamma }&{}_{100\%}\end{matrix}}}
Sigma negativa
Σ
−
{\displaystyle \mathrm {\Sigma ^{-}} \,\!}
d
d
s
{\displaystyle \mathrm {dds} \,\!}
1
2
{\displaystyle {\begin{matrix}{\frac {1}{2}}\end{matrix}}}
1.197,45
−1
0
0
1,48·10-10
Σ
−
→
n
+
π
−
99
,
84
%
Σ
−
→
n
+
e
−
+
ν
¯
e
0
,
1
%
{\displaystyle {\begin{matrix}{}_{\Sigma ^{-}\,\rightarrow \,n+\pi ^{-}}&{}_{99,84\%}\\{}_{\Sigma ^{-}\,\rightarrow \,n+e^{-}+{\bar {\nu }}_{e}}&{}_{0,1\%}\end{matrix}}}
Datos: Q626719