NA49
E133808
NA49 was a fixed-target heavy-ion experiment at CERN’s Super Proton Synchrotron that studied hadron production and properties of strongly interacting matter in high-energy nuclear collisions.
All labels observed (2)
| Label | Occurrences |
|---|---|
| NA49 canonical | 1 |
| NA49 experiment | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1160874 — 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: NA49 Context triple: [NA61/SHINE, successorOf, NA49]
-
A.
NA48
NA48 was a CERN fixed-target experiment at the SPS focused on precision studies of CP violation and rare decays in neutral kaons.
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B.
NA62
NA62 is a high-energy physics experiment at CERN designed primarily to study rare kaon decays and test the predictions of the Standard Model.
-
C.
NA61/SHINE
NA61/SHINE is a fixed-target experiment at CERN that studies hadron production and properties of strongly interacting matter using high-energy beams from the Super Proton Synchrotron.
-
D.
LHCf
LHCf is a CERN experiment at the Large Hadron Collider that studies forward particles produced in proton–proton collisions to improve our understanding of ultra-high-energy cosmic rays.
-
E.
NA58 experiment
The NA58 experiment, also known as COMPASS at CERN, is a fixed-target particle physics experiment designed to study the structure and dynamics of hadrons using high-intensity muon and hadron beams.
- 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: NA49 Target entity description: NA49 was a fixed-target heavy-ion experiment at CERN’s Super Proton Synchrotron that studied hadron production and properties of strongly interacting matter in high-energy nuclear collisions.
-
A.
NA48
NA48 was a CERN fixed-target experiment at the SPS focused on precision studies of CP violation and rare decays in neutral kaons.
-
B.
NA62
NA62 is a high-energy physics experiment at CERN designed primarily to study rare kaon decays and test the predictions of the Standard Model.
-
C.
NA61/SHINE
NA61/SHINE is a fixed-target experiment at CERN that studies hadron production and properties of strongly interacting matter using high-energy beams from the Super Proton Synchrotron.
-
D.
LHCf
LHCf is a CERN experiment at the Large Hadron Collider that studies forward particles produced in proton–proton collisions to improve our understanding of ultra-high-energy cosmic rays.
-
E.
NA58 experiment
The NA58 experiment, also known as COMPASS at CERN, is a fixed-target particle physics experiment designed to study the structure and dynamics of hadrons using high-intensity muon and hadron beams.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
CERN experiment
ⓘ
fixed-target experiment ⓘ heavy-ion experiment ⓘ particle physics experiment ⓘ |
| beamType |
lead ion beam
ⓘ
light ion beam ⓘ proton beam ⓘ |
| collaborationSize | about 150 physicists ⓘ |
| collaborationType | international collaboration ⓘ |
| country | Switzerland ⓘ |
| dataTakingMode | fixed-target ⓘ |
| endDate | early 2000s ⓘ |
| energyRange | up to 158 A GeV beam energy ⓘ |
| fieldOfStudy |
heavy-ion physics
ⓘ
high-energy nuclear physics ⓘ strong interaction ⓘ |
| hasDetectorType |
calorimeter
ⓘ
time projection chamber ⓘ time-of-flight detector ⓘ |
| hasPhysicsGoal |
measurement of event-by-event fluctuations
ⓘ
measurement of hadron spectra ⓘ study of baryon stopping ⓘ study of collective flow ⓘ study of phase transition in strongly interacting matter ⓘ study of quark–gluon plasma signatures ⓘ study of strangeness enhancement ⓘ |
| locatedAt | CERN ⓘ |
| locatedInFacility | Super Proton Synchrotron ⓘ |
| operatedAt |
North Area of CERN SPS
ⓘ
surface form:
CERN North Area
|
| primaryTargetMaterial |
carbon
ⓘ
lead ⓘ proton ⓘ |
| researchOutput |
energy-scan results at SPS energies
ⓘ
event-by-event fluctuation analyses ⓘ measurements of hadron multiplicities ⓘ measurements of rapidity distributions ⓘ measurements of transverse mass spectra ⓘ system-size dependence studies ⓘ |
| startDate | 1994 ⓘ |
| studies |
hadron production
ⓘ
high-energy nuclear collisions ⓘ nucleus–nucleus collisions ⓘ proton–nucleus collisions ⓘ proton–proton collisions ⓘ strongly interacting matter ⓘ |
| successor | NA61/SHINE ⓘ |
| usesAccelerator | Super Proton Synchrotron ⓘ |
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: NA49 Description of subject: NA49 was a fixed-target heavy-ion experiment at CERN’s Super Proton Synchrotron that studied hadron production and properties of strongly interacting matter in high-energy nuclear collisions.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
NA49 experiment