UA1 experiment
E12517
The UA1 experiment was a high-energy physics collaboration at CERN’s Super Proton Synchrotron that became famous for providing the first experimental evidence of the W and Z bosons, key carriers of the weak nuclear force.
All labels observed (3)
| Label | Occurrences |
|---|---|
| UA1 experiment canonical | 5 |
| UA1 experiment at CERN | 1 |
| UA1 interaction point | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T95310 — 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: UA1 experiment Context triple: [W boson, wasDiscoveredBy, UA1 experiment]
-
A.
UA2 experiment
The UA2 experiment was a high-energy physics collaboration at CERN’s Super Proton Synchrotron that played a key role in confirming the existence and properties of the W boson.
-
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.
ATLAS
ATLAS is a major particle physics experiment and detector at the Large Hadron Collider that investigates fundamental particles and forces, including the Higgs boson.
-
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.
Large Hadron Collider
The Large Hadron Collider is the world’s largest and most powerful particle accelerator, used to smash subatomic particles together at unprecedented energies to study fundamental physics, including the Higgs boson.
- 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: UA1 experiment Target entity description: The UA1 experiment was a high-energy physics collaboration at CERN’s Super Proton Synchrotron that became famous for providing the first experimental evidence of the W and Z bosons, key carriers of the weak nuclear force.
-
A.
UA2 experiment
The UA2 experiment was a high-energy physics collaboration at CERN’s Super Proton Synchrotron that played a key role in confirming the existence and properties of the W boson.
-
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.
ATLAS
ATLAS is a major particle physics experiment and detector at the Large Hadron Collider that investigates fundamental particles and forces, including the Higgs boson.
-
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.
Large Hadron Collider
The Large Hadron Collider is the world’s largest and most powerful particle accelerator, used to smash subatomic particles together at unprecedented energies to study fundamental physics, including the Higgs boson.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
CERN experiment
ⓘ
collider experiment ⓘ high-energy physics experiment ⓘ particle physics experiment ⓘ |
| aim |
search for intermediate vector bosons
ⓘ
test of electroweak sector of the Standard Model ⓘ |
| basedOnTheory |
Standard Model
ⓘ
surface form:
Standard Model of particle physics
electroweak theory ⓘ |
| collaborationType |
high-energy physics collaboration
ⓘ
international collaboration ⓘ |
| country | Switzerland ⓘ |
| dataTakingMethod | collider experiment ⓘ |
| detectorType |
general-purpose detector
ⓘ
hadron collider detector ⓘ |
| energyScale | hundreds of GeV center-of-mass energy ⓘ |
| era | late 20th century particle physics ⓘ |
| field |
high-energy physics
ⓘ
particle physics ⓘ |
| hostInstitution |
CERN
ⓘ
surface form:
European Organization for Nuclear Research
|
| impact | Nobel Prize in Physics 1984 for W and Z boson discovery (to key collaborators) ⓘ |
| involves |
antiproton beams
ⓘ
proton beams ⓘ |
| knownFor |
discovery of the W and Z bosons
ⓘ
first experimental evidence of the W boson ⓘ first experimental evidence of the Z boson ⓘ |
| locatedInFacility | Super Proton Synchrotron ⓘ |
| location | CERN ⓘ |
| organization | CERN ⓘ |
| relatedTo |
UA2 experiment
ⓘ
electroweak unification ⓘ |
| researchArea |
W boson
ⓘ
Z boson ⓘ electroweak interaction ⓘ weak nuclear force ⓘ |
| result |
measurement of W boson properties
ⓘ
measurement of Z boson properties ⓘ observation of W boson production ⓘ observation of Z boson production ⓘ |
| significance |
confirmation of the electroweak theory
ⓘ
experimental verification of the Standard Model ⓘ |
| sitedAt |
North Area of CERN SPS
ⓘ
surface form:
Super Proton Synchrotron experimental area
|
| studiedProcess | proton–antiproton collisions ⓘ |
| usesAccelerator | Super Proton Synchrotron ⓘ |
| usesTechnology |
calorimeters
ⓘ
large multi-purpose detector ⓘ muon detectors ⓘ tracking detectors ⓘ |
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: UA1 experiment Description of subject: The UA1 experiment was a high-energy physics collaboration at CERN’s Super Proton Synchrotron that became famous for providing the first experimental evidence of the W and Z bosons, key carriers of the weak nuclear force.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Z boson
subject surface form:
W− boson
subject surface form:
Carlo Rubbia
this entity surface form:
UA1 experiment at CERN
this entity surface form:
UA1 interaction point