|
gptkbp:instanceOf
|
baryon
|
|
gptkbp:antiparticle
|
gptkb:anti-Sigma_baryon
|
|
gptkbp:charge_(Σ+)
|
+1
|
|
gptkbp:charge_(Σ-)
|
-1
|
|
gptkbp:charge_(Σ0)
|
0
|
|
gptkbp:composedOf
|
three quarks
|
|
gptkbp:contains
|
gptkb:down_quark
gptkb:strange_quark
gptkb:up_quark
|
|
gptkbp:decaysTo
|
gptkb:weak_interaction
pion
nucleon
|
|
gptkbp:discoveredBy
|
1933
|
|
gptkbp:does_not_interact_via
|
gravitational interaction (negligible)
|
|
gptkbp:family
|
gptkb:hyperon
|
|
gptkbp:first_observed_at
|
gptkb:Cavendish_Laboratory
|
|
gptkbp:has_excited_state
|
gptkb:Sigma*_baryon
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Sigma baryon
|
|
gptkbp:interactsWith
|
gptkb:weak_interaction
electromagnetic interaction
strong interaction
|
|
gptkbp:isospin
|
1
|
|
gptkbp:lifetime_(Σ+)
|
0.8 × 10^-10 s
|
|
gptkbp:lifetime_(Σ-)
|
1.5 × 10^-10 s
|
|
gptkbp:lifetime_(Σ0)
|
7.4 × 10^-20 s
|
|
gptkbp:mass_(Σ+)
|
1189 MeV/c^2
|
|
gptkbp:mass_(Σ-)
|
1197 MeV/c^2
|
|
gptkbp:mass_(Σ0)
|
1192 MeV/c^2
|
|
gptkbp:member
|
baryon decuplet
baryon octet
|
|
gptkbp:namedAfter
|
gptkb:Greek_letter_Sigma
|
|
gptkbp:par
|
+1
|
|
gptkbp:quark_content
|
uds
dds
uus
|
|
gptkbp:range
|
+1
0
-1
|
|
gptkbp:related_particle
|
gptkb:Lambda_baryon
gptkb:Xi_baryon
gptkb:Nucleon
|
|
gptkbp:spin
|
1/2
3/2
|
|
gptkbp:statistic
|
Fermion
|
|
gptkbp:strangeness
|
-1
|
|
gptkbp:studiedBy
|
particle physics
|
|
gptkbp:symbol
|
Σ
|
|
gptkbp:bfsParent
|
gptkb:Particle
|
|
gptkbp:bfsLayer
|
5
|