Electromagnetic Calorimeter
E24804
The Electromagnetic Calorimeter is a high-precision detector subsystem used in particle physics experiments to measure the energy and position of electrons and photons produced in high-energy collisions.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Electromagnetic Calorimeter canonical | 3 |
| ALICE Electromagnetic Calorimeter | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T192423 — 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: Electromagnetic Calorimeter Context triple: [ALICE, hasSubsystem, Electromagnetic Calorimeter]
-
A.
Time Projection Chamber
The Time Projection Chamber is a large gaseous detector used in particle physics experiments to track and identify charged particles in three dimensions with high precision.
-
B.
Transition Radiation Detector
The Transition Radiation Detector is a particle physics instrument that identifies high-energy charged particles—especially electrons—by detecting the X-ray photons they emit when crossing boundaries between materials at relativistic speeds.
-
C.
Photon Spectrometer
The Photon Spectrometer is a specialized detector subsystem of the ALICE experiment at CERN designed to precisely measure and analyze high-energy photons produced in heavy-ion collisions.
-
D.
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.
-
E.
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.
- 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: Electromagnetic Calorimeter Target entity description: The Electromagnetic Calorimeter is a high-precision detector subsystem used in particle physics experiments to measure the energy and position of electrons and photons produced in high-energy collisions.
-
A.
Time Projection Chamber
The Time Projection Chamber is a large gaseous detector used in particle physics experiments to track and identify charged particles in three dimensions with high precision.
-
B.
Transition Radiation Detector
The Transition Radiation Detector is a particle physics instrument that identifies high-energy charged particles—especially electrons—by detecting the X-ray photons they emit when crossing boundaries between materials at relativistic speeds.
-
C.
Photon Spectrometer
The Photon Spectrometer is a specialized detector subsystem of the ALICE experiment at CERN designed to precisely measure and analyze high-energy photons produced in heavy-ion collisions.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
calorimeter
ⓘ
electromagnetic shower detector ⓘ particle detector subsystem ⓘ |
| calibratedWith |
electron test beams
ⓘ
physics processes with known energies ⓘ |
| commonMaterial |
lead glass
ⓘ
lead tungstate (PbWO4) ⓘ liquid argon ⓘ plastic scintillator with high-Z absorber ⓘ scintillating crystals ⓘ |
| designedFor | detection of electromagnetic showers ⓘ |
| detects |
electrons
ⓘ
photons ⓘ |
| locatedIn |
fixed-target particle physics experiments
ⓘ
large collider detectors ⓘ |
| measures |
energy of electrons
ⓘ
energy of photons ⓘ position of electrons ⓘ position of photons ⓘ |
| oftenPrecedes | hadronic calorimeter ⓘ |
| partOf |
ALICE detector
ⓘ
linked to:
ALICE experiment
ATLAS detector ⓘ
linked to:
ATLAS
BaBar detector ⓘ Belle II detector ⓘ Belle detector ⓘ
linked to:
BaBar detector
CDF detector ⓘ CMS detector ⓘ
linked to:
CMS experiment
COMPASS experiment ⓘ D0 detector ⓘ
linked to:
DØ detector
LHCb detector ⓘ
linked to:
LHCb
NA62 experiment ⓘ
linked to:
NA62
|
| performanceMetric | energy resolution parameterized as a stochastic term plus constant term ⓘ |
| placed | outside inner tracking detectors ⓘ |
| provides |
energy resolution for electromagnetic particles
ⓘ
position resolution for electromagnetic particles ⓘ |
| readoutTechnology |
avalanche photodiodes
ⓘ
ionization readout in liquid argon ⓘ photomultiplier tubes ⓘ silicon photomultipliers ⓘ |
| roleInExperiment |
contribution to missing transverse energy measurement
ⓘ
precision measurement of electromagnetic final states ⓘ |
| technology |
homogeneous calorimeter
ⓘ
sampling calorimeter ⓘ |
| usedFor |
electron identification
ⓘ
measurement of neutral pions via two-photon decays ⓘ photon identification ⓘ triggering on high-energy electromagnetic objects ⓘ |
| usedIn | particle physics experiments ⓘ |
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: Electromagnetic Calorimeter Description of subject: The Electromagnetic Calorimeter is a high-precision detector subsystem used in particle physics experiments to measure the energy and position of electrons and photons produced in high-energy collisions.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Electromagnetic Calorimeter