COMPASS experiment
E127238
The COMPASS experiment is a high-energy physics experiment at CERN designed to study the structure and dynamics of hadrons using intense muon and hadron beams.
All labels observed (5)
| Label | Occurrences |
|---|---|
| COMPASS experiment canonical | 5 |
| COMPASS experiment at CERN | 1 |
| COMPASS spectrometer | 1 |
| COMPASS spectrometer components | 1 |
| COMPASS++/AMBER experiment | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1096032 — 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: COMPASS experiment Context triple: [M2 beam line, primaryExperiment, COMPASS experiment]
-
A.
CMS experiment
The CMS experiment is a major general-purpose particle physics detector at CERN’s Large Hadron Collider designed to investigate a wide range of phenomena including the Higgs boson, dark matter candidates, and physics beyond the Standard Model.
-
B.
DUNE experiment
The DUNE experiment is a major international neutrino physics project designed to study neutrino oscillations, matter–antimatter asymmetry, and proton decay using intense neutrino beams and massive underground detectors.
-
C.
ATRAP experiment
The ATRAP experiment is a particle physics project at CERN dedicated to trapping and studying antihydrogen atoms and other antimatter systems to test fundamental symmetries and the properties of antimatter.
-
D.
MINOS experiment
The MINOS experiment is a long-baseline neutrino oscillation project that studied how neutrinos change type as they travel from Fermilab to a distant underground detector.
-
E.
NOvA experiment
The NOvA experiment is a long-baseline neutrino oscillation project that studies how neutrinos change type as they travel from Fermilab to a distant detector in northern Minnesota.
- 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: COMPASS experiment Target entity description: The COMPASS experiment is a high-energy physics experiment at CERN designed to study the structure and dynamics of hadrons using intense muon and hadron beams.
-
A.
CMS experiment
The CMS experiment is a major general-purpose particle physics detector at CERN’s Large Hadron Collider designed to investigate a wide range of phenomena including the Higgs boson, dark matter candidates, and physics beyond the Standard Model.
-
B.
DUNE experiment
The DUNE experiment is a major international neutrino physics project designed to study neutrino oscillations, matter–antimatter asymmetry, and proton decay using intense neutrino beams and massive underground detectors.
-
C.
ATRAP experiment
The ATRAP experiment is a particle physics project at CERN dedicated to trapping and studying antihydrogen atoms and other antimatter systems to test fundamental symmetries and the properties of antimatter.
-
D.
MINOS experiment
The MINOS experiment is a long-baseline neutrino oscillation project that studied how neutrinos change type as they travel from Fermilab to a distant underground detector.
-
E.
NOvA experiment
The NOvA experiment is a long-baseline neutrino oscillation project that studies how neutrinos change type as they travel from Fermilab to a distant detector in northern Minnesota.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
CERN experiment
ⓘ
fixed-target experiment ⓘ particle physics experiment ⓘ |
| acronym | COMPASS ⓘ |
| approvedBy |
CERN Research Board
ⓘ
surface form:
CERN SPS Committee
|
| beamEnergy |
up to 160 GeV for muon beams
ⓘ
up to 190 GeV for hadron beams ⓘ |
| collaborationSize | over 200 physicists ⓘ |
| collaborationType | international collaboration ⓘ |
| country | Switzerland ⓘ |
| dataTakingPeriod | early 2000s to 2010s ⓘ |
| detectorType | two-stage magnetic spectrometer ⓘ |
| fullName | Common Muon and Proton Apparatus for Structure and Spectroscopy ⓘ |
| hasComponent |
GEM detectors
ⓘ
RICH detector ⓘ drift chambers ⓘ electromagnetic calorimeters ⓘ hadronic calorimeters ⓘ large-aperture dipole magnets ⓘ micromegas detectors ⓘ muon filters ⓘ tracking detectors ⓘ trigger hodoscopes ⓘ |
| laboratory | CERN ⓘ |
| locatedAt | Super Proton Synchrotron ⓘ |
| locatedIn | CERN ⓘ |
| researchField |
hadron physics
ⓘ
high-energy physics ⓘ nucleon structure ⓘ quantum chromodynamics ⓘ |
| startDate | 2002 ⓘ |
| studies |
charmed hadrons
ⓘ
dynamics of hadrons ⓘ exotic mesons ⓘ gluon polarization ⓘ hadron spectroscopy ⓘ hybrid mesons ⓘ nucleon spin structure ⓘ structure of hadrons ⓘ transverse spin effects ⓘ |
| successor |
COMPASS experiment
self-linksurface differs
ⓘ
surface form:
COMPASS++/AMBER experiment
|
| usesAccelerator | SPS ⓘ |
| usesBeam |
hadron beam
ⓘ
kaon beam ⓘ muon beam ⓘ pion beam ⓘ proton beam ⓘ |
| usesTarget |
polarized target
ⓘ
solid-state target ⓘ |
| usesTargetMaterial |
6LiD
ⓘ
NH3 ⓘ |
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: COMPASS experiment Description of subject: The COMPASS experiment is a high-energy physics experiment at CERN designed to study the structure and dynamics of hadrons using intense muon and hadron beams.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
COMPASS spectrometer
this entity surface form:
COMPASS experiment at CERN
this entity surface form:
COMPASS++/AMBER experiment
this entity surface form:
COMPASS spectrometer components