Inner Tracking System
E24493
The Inner Tracking System is a high-precision silicon detector in the ALICE experiment at CERN’s Large Hadron Collider, used to track and identify particles produced in heavy-ion collisions near the interaction point.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Inner Tracking System canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T192419 — 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: Inner Tracking System Context triple: [ALICE, hasSubsystem, Inner Tracking System]
-
A.
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.
-
B.
FASER
FASER is a forward physics experiment at CERN’s Large Hadron Collider designed to search for light, weakly interacting particles and study high-energy neutrinos produced in proton–proton collisions.
-
C.
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.
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D.
LHC Injectors Upgrade (LIU)
The LHC Injectors Upgrade (LIU) is a major CERN project to modernize and enhance the performance of the accelerator chain feeding the Large Hadron Collider, enabling higher beam intensities and luminosities for future physics runs.
-
E.
Central Flow Management Unit
The Central Flow Management Unit is a European air traffic management body responsible for coordinating and optimizing air traffic flow across Europe to ensure safety and efficiency in the use of airspace.
- 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: Inner Tracking System Target entity description: The Inner Tracking System is a high-precision silicon detector in the ALICE experiment at CERN’s Large Hadron Collider, used to track and identify particles produced in heavy-ion collisions near the interaction point.
-
A.
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.
-
B.
FASER
FASER is a forward physics experiment at CERN’s Large Hadron Collider designed to search for light, weakly interacting particles and study high-energy neutrinos produced in proton–proton collisions.
-
C.
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.
-
D.
LHC Injectors Upgrade (LIU)
The LHC Injectors Upgrade (LIU) is a major CERN project to modernize and enhance the performance of the accelerator chain feeding the Large Hadron Collider, enabling higher beam intensities and luminosities for future physics runs.
-
E.
Central Flow Management Unit
The Central Flow Management Unit is a European air traffic management body responsible for coordinating and optimizing air traffic flow across Europe to ensure safety and efficiency in the use of airspace.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
particle detector subsystem
ⓘ
silicon tracking detector ⓘ |
| collider | Large Hadron Collider ⓘ |
| coordinateSystem | cylindrical geometry around beam axis ⓘ |
| designedFor | high-precision tracking near the interaction point ⓘ |
| designedToWithstand | high particle multiplicities in heavy-ion collisions ⓘ |
| enables |
identification of short-lived particles via displaced vertices
ⓘ
measurement of low-momentum particles ⓘ |
| environment | high-radiation environment ⓘ |
| experimentType |
heavy-ion physics
ⓘ
high-energy particle physics ⓘ |
| hasComponent |
Silicon Drift Detector
ⓘ
Silicon Pixel Detector ⓘ Silicon Strip Detector ⓘ |
| hostFacility | CERN ⓘ |
| locatedAt | CERN ⓘ |
| locatedAtRadius | few centimeters to tens of centimeters from beam line ⓘ |
| locatedIn | Large Hadron Collider ⓘ |
| operatedBy |
ALICE Collaboration
ⓘ
linked to:
ALICE experiment
|
| partOf | ALICE experiment ⓘ |
| physicsGoal |
study of quark-gluon plasma
ⓘ
study of strongly interacting matter at extreme energy density ⓘ |
| provides |
high spatial resolution
ⓘ
precise primary vertex determination ⓘ secondary vertex reconstruction ⓘ track seeding for outer tracking detectors ⓘ |
| readout | high-rate data acquisition ⓘ |
| surrounds | ALICE interaction point ⓘ |
| technology |
silicon drift detectors
ⓘ
silicon pixel detectors ⓘ silicon strip detectors ⓘ |
| upgradeGoal |
higher readout rate
ⓘ
improved tracking resolution ⓘ reduced material budget ⓘ |
| upgradeStatus | upgraded for LHC Run 3 ⓘ |
| upgradeTechnology | monolithic active pixel sensors ⓘ |
| usedFor |
measurement of impact parameters
ⓘ
particle identification ⓘ tracking charged particles ⓘ vertex reconstruction ⓘ |
| usedIn |
heavy-ion collision experiments
ⓘ
proton-proton collision experiments ⓘ |
| worksWith |
Time Projection Chamber
ⓘ
Transition Radiation Detector ⓘ |
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: Inner Tracking System Description of subject: The Inner Tracking System is a high-precision silicon detector in the ALICE experiment at CERN’s Large Hadron Collider, used to track and identify particles produced in heavy-ion collisions near the interaction point.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.