VELO
E24264
VELO is the high-precision vertex detector of the LHCb experiment at CERN, designed to measure particle trajectories very close to the proton–proton collision point.
All labels observed (1)
| Label | Occurrences |
|---|---|
| VELO canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T192480 — 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: VELO Context triple: [LHCb, hasSubsystem, VELO]
-
A.
NV
NV is the official two-letter United States Postal Service abbreviation for the state of Nevada.
-
B.
SV
SV is the two-letter ISO 3166-1 alpha-2 country code assigned to El Salvador.
-
C.
Valor
Valor is a concept or quality associated with courage and bravery in the context of warfare and heroic action.
-
D.
Coll
Coll is a small, sparsely populated island in the Inner Hebrides of Scotland, known for its sandy beaches, dark skies, and rich wildlife.
-
E.
Varhadi
Varhadi is a regional dialect of Marathi spoken primarily in the Vidarbha region of Maharashtra, India, known for its distinct phonetic and lexical features.
- 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: VELO Target entity description: VELO is the high-precision vertex detector of the LHCb experiment at CERN, designed to measure particle trajectories very close to the proton–proton collision point.
-
A.
NV
NV is the official two-letter United States Postal Service abbreviation for the state of Nevada.
-
B.
SV
SV is the two-letter ISO 3166-1 alpha-2 country code assigned to El Salvador.
-
C.
Valor
Valor is a concept or quality associated with courage and bravery in the context of warfare and heroic action.
-
D.
Coll
Coll is a small, sparsely populated island in the Inner Hebrides of Scotland, known for its sandy beaches, dark skies, and rich wildlife.
-
E.
Varhadi
Varhadi is a regional dialect of Marathi spoken primarily in the Vidarbha region of Maharashtra, India, known for its distinct phonetic and lexical features.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
particle physics detector subsystem
ⓘ
vertex detector ⓘ |
| accelerator | Large Hadron Collider ⓘ |
| associatedWith | proton–proton collisions ⓘ |
| collaboration |
LHCb
ⓘ
surface form:
LHCb collaboration
|
| coordinateSystem | cylindrical geometry around beam line ⓘ |
| designedFor |
high-precision vertex reconstruction
ⓘ
measurement of particle trajectories ⓘ operation close to proton–proton collision point ⓘ |
| distanceToBeam | few millimetres from beam during operation ⓘ |
| enables |
b-hadron vertex reconstruction
ⓘ
charm-hadron vertex reconstruction ⓘ precise decay time measurements ⓘ trigger on displaced vertices ⓘ |
| experimentHall |
LHCb
ⓘ
surface form:
LHCb experimental cavern
|
| experimentType | flavour physics ⓘ |
| hasComponent |
RF foil
ⓘ
silicon microstrip sensors ⓘ silicon sensors ⓘ vacuum vessel ⓘ |
| hasFunction |
impact parameter measurement
ⓘ
measurement of primary vertices ⓘ measurement of secondary vertices ⓘ |
| hasUpgrade | Upgraded VELO for LHCb Phase-I upgrade ⓘ |
| improves |
background rejection using displaced vertices
ⓘ
proper time resolution for B mesons ⓘ |
| laboratory | CERN ⓘ |
| locatedAt | Large Hadron Collider ⓘ |
| locatedIn | CERN ⓘ |
| operationalMode |
closed around beam during stable running
ⓘ
retractable from beam during injection ⓘ |
| optimisedFor |
CP violation studies
ⓘ
heavy flavour physics ⓘ rare decay searches ⓘ |
| partOf |
LHCb
ⓘ
surface form:
LHCb experiment
|
| physicsProgramme |
beauty quark studies
ⓘ
charm quark studies ⓘ searches for new physics in flavour sector ⓘ |
| position | surrounds LHCb interaction point ⓘ |
| provides |
input to LHCb trigger system
ⓘ
track extrapolation to interaction point ⓘ |
| readoutType | silicon strip readout ⓘ |
| roleInAnalysis |
impact parameter resolution
ⓘ
primary vertex resolution ⓘ secondary vertex resolution ⓘ |
| technology | silicon tracking detector ⓘ |
| usedBy |
LHCb
ⓘ
surface form:
LHCb collaboration
|
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: VELO Description of subject: VELO is the high-precision vertex detector of the LHCb experiment at CERN, designed to measure particle trajectories very close to the proton–proton collision point.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.