K-short
E127236
K-short is the short-lived neutral kaon, a subatomic meson that decays rapidly via the weak interaction and plays a key role in studies of CP violation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| K-short canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1095765 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: K-short Context triple: [NA48, studiesParticle, K-short]
-
A.
Shorter
Shorter is a surname of English origin borne by various notable individuals across different fields.
-
B.
Short 184
The Short 184 was a British World War I reconnaissance and torpedo-carrying seaplane widely used for naval operations and notable for conducting the first successful aerial torpedo attack.
-
C.
Too Short
Too Short is an American rapper and pioneer of West Coast hip hop, known for his explicit lyrics and influential role in the Oakland rap scene since the 1980s.
-
D.
Short Cuts
Short Cuts is a Toronto International Film Festival program showcasing a curated selection of international and Canadian short films across genres and styles.
-
E.
Shuar
Shuar is an indigenous language of the Jivaroan family spoken by the Shuar people primarily in the Amazonian regions of Ecuador and Peru.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: K-short Target entity description: K-short is the short-lived neutral kaon, a subatomic meson that decays rapidly via the weak interaction and plays a key role in studies of CP violation.
-
A.
Shorter
Shorter is a surname of English origin borne by various notable individuals across different fields.
-
B.
Short 184
The Short 184 was a British World War I reconnaissance and torpedo-carrying seaplane widely used for naval operations and notable for conducting the first successful aerial torpedo attack.
-
C.
Too Short
Too Short is an American rapper and pioneer of West Coast hip hop, known for his explicit lyrics and influential role in the Oakland rap scene since the 1980s.
-
D.
Short Cuts
Short Cuts is a Toronto International Film Festival program showcasing a curated selection of international and Canadian short films across genres and styles.
-
E.
Shuar
Shuar is an indigenous language of the Jivaroan family spoken by the Shuar people primarily in the Amazonian regions of Ecuador and Peru.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
meson
ⓘ
neutral kaon ⓘ pseudoscalar meson ⓘ subatomic particle ⓘ |
| belongsTo |
kaon family
ⓘ
light mesons ⓘ |
| decaysPrimarilyTo |
pi+ pi-
ⓘ
pi0 pi0 ⓘ |
| hasAlternativeName |
K0-short
ⓘ
K_S ⓘ K_S^0 ⓘ |
| hasBaryonNumber | 0 ⓘ |
| hasBottomness | 0 ⓘ |
| hasBranchingRatioTo_pi+pi- | ~69% ⓘ |
| hasBranchingRatioTo_pi0pi0 | ~31% ⓘ |
| hasCharm | 0 ⓘ |
| hasCPApproximateEigenvalue | +1 ⓘ |
| hasDecayWidth | ~7.35×10^9 s^-1 ⓘ |
| hasElectricCharge | 0 ⓘ |
| hasGeneration | first and second quark generations ⓘ |
| hasIsospin | 1/2 ⓘ |
| hasLeptonNumber | 0 ⓘ |
| hasMass | ~497.6 MeV/c^2 ⓘ |
| hasMeanLifetime | ~8.95×10^-11 s ⓘ |
| hasParity | -1 ⓘ |
| hasPDGParticleID | 310 ⓘ |
| hasQuarkContentNotation | d s̄ ⓘ |
| hasSpin | 0 ⓘ |
| hasStrangeness | +1 ⓘ |
| hasTopness | 0 ⓘ |
| interactsVia |
electromagnetic interaction
ⓘ
gravitational interaction ⓘ weak interaction ⓘ |
| isComposedOf |
down quark
ⓘ
strange antiquark ⓘ |
| isMassEigenstateOf | neutral kaon system ⓘ |
| isObservedIn |
collider experiments
ⓘ
fixed-target experiments ⓘ |
| isProducedIn | strong interaction processes ⓘ |
| isShortLivedRelativeTo | K-long ⓘ |
| isStudiedIn |
flavor physics
ⓘ
particle physics ⓘ |
| isSubjectOf | neutral kaon CP violation experiments ⓘ |
| isSuperpositionOf |
K0
ⓘ
anti-K0 ⓘ |
| playsRoleIn |
CP violation studies
ⓘ
neutral kaon mixing ⓘ |
| wasKeyIn | discovery of CP violation ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: K-short Description of subject: K-short is the short-lived neutral kaon, a subatomic meson that decays rapidly via the weak interaction and plays a key role in studies of CP violation.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.