The Photoproduction of Positive and Negative Pions in Hydrogen and Deuterium
E860353
"The Photoproduction of Positive and Negative Pions in Hydrogen and Deuterium" is Martin Perl’s doctoral thesis, an experimental particle physics study of how high-energy photons produce charged pions when interacting with hydrogen and deuterium targets.
All labels observed (1)
| Label | Occurrences |
|---|---|
| The Photoproduction of Positive and Negative Pions in Hydrogen and Deuterium canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10376259 — 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: The Photoproduction of Positive and Negative Pions in Hydrogen and Deuterium Context triple: [Martin Perl, doctoralThesis, The Photoproduction of Positive and Negative Pions in Hydrogen and Deuterium]
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A.
A Large Ion Collider Experiment
A Large Ion Collider Experiment (ALICE) is a major detector at CERN’s Large Hadron Collider designed to study the physics of strongly interacting matter and quark–gluon plasma created in high-energy heavy-ion collisions.
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B.
Bhabha–Heitler theory of cascade showers
The Bhabha–Heitler theory of cascade showers is a foundational quantum electrodynamics model that explains how high-energy cosmic rays generate particle cascades as they interact with matter and radiation in the atmosphere.
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C.
Apparatus for Meson and Baryon Experimental Research
Apparatus for Meson and Baryon Experimental Research is a high-energy physics experiment designed to study the properties and interactions of mesons and baryons using particle beams and advanced detectors.
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D.
TOTal Elastic and diffractive cross section Measurement
TOTal Elastic and diffractive cross section Measurement (TOTEM) is a CERN experiment at the Large Hadron Collider dedicated to precisely measuring proton–proton total, elastic, and diffractive cross sections at high energies.
-
E.
On the Interaction of Elementary Particles I
"On the Interaction of Elementary Particles I" is a seminal theoretical physics paper by Hideki Yukawa that introduced the meson theory of nuclear forces, laying the groundwork for modern particle physics.
- 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: The Photoproduction of Positive and Negative Pions in Hydrogen and Deuterium Target entity description: "The Photoproduction of Positive and Negative Pions in Hydrogen and Deuterium" is Martin Perl’s doctoral thesis, an experimental particle physics study of how high-energy photons produce charged pions when interacting with hydrogen and deuterium targets.
-
A.
A Large Ion Collider Experiment
A Large Ion Collider Experiment (ALICE) is a major detector at CERN’s Large Hadron Collider designed to study the physics of strongly interacting matter and quark–gluon plasma created in high-energy heavy-ion collisions.
-
B.
Bhabha–Heitler theory of cascade showers
The Bhabha–Heitler theory of cascade showers is a foundational quantum electrodynamics model that explains how high-energy cosmic rays generate particle cascades as they interact with matter and radiation in the atmosphere.
-
C.
Apparatus for Meson and Baryon Experimental Research
Apparatus for Meson and Baryon Experimental Research is a high-energy physics experiment designed to study the properties and interactions of mesons and baryons using particle beams and advanced detectors.
-
D.
TOTal Elastic and diffractive cross section Measurement
TOTal Elastic and diffractive cross section Measurement (TOTEM) is a CERN experiment at the Large Hadron Collider dedicated to precisely measuring proton–proton total, elastic, and diffractive cross sections at high energies.
-
E.
On the Interaction of Elementary Particles I
"On the Interaction of Elementary Particles I" is a seminal theoretical physics paper by Hideki Yukawa that introduced the meson theory of nuclear forces, laying the groundwork for modern particle physics.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
doctoral thesis
ⓘ
experimental particle physics work ⓘ physics thesis ⓘ |
| academicAdvisor | not precisely known ⓘ |
| author | Martin L. Perl ⓘ |
| authorField | experimental particle physics ⓘ |
| authorLaterKnownFor | discovery of the tau lepton ⓘ |
| authorOccupation | physicist ⓘ |
| concernsEnergyScale | high-energy photons ⓘ |
| contributesTo |
understanding of meson photoproduction
ⓘ
understanding of nucleon structure ⓘ |
| degree | PhD ⓘ |
| documentType | university dissertation ⓘ |
| examines |
dependence of cross section on photon energy
ⓘ
dependence of cross section on scattering angle ⓘ differences between positive and negative pion photoproduction ⓘ |
| field |
nuclear physics
ⓘ
particle physics ⓘ |
| focusesOn |
negative pions
ⓘ
positive pions ⓘ |
| hasAuthorNameString | Martin Perl ⓘ |
| hasMainSubject |
photon-induced nuclear reactions
ⓘ
pion–nucleon interactions ⓘ |
| investigates | production mechanisms of π+ and π− ⓘ |
| language | English ⓘ |
| methodology | experimental measurement of cross sections ⓘ |
| researchType | laboratory experiment ⓘ |
| studiesInteraction | electromagnetic interaction ⓘ |
| studiesParticle |
pions
ⓘ
protons ⓘ |
| studiesProcess |
interaction of high-energy photons with nucleons
ⓘ
photon–deuteron interactions ⓘ photon–proton interactions ⓘ |
| studiesQuantity | pion photoproduction cross sections ⓘ |
| subjectArea |
high-energy physics
ⓘ
meson physics ⓘ |
| topic |
charged pions
ⓘ
photoproduction of pions ⓘ pion production by photons ⓘ |
| usesTarget |
deuterium
ⓘ
hydrogen ⓘ |
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: The Photoproduction of Positive and Negative Pions in Hydrogen and Deuterium Description of subject: "The Photoproduction of Positive and Negative Pions in Hydrogen and Deuterium" is Martin Perl’s doctoral thesis, an experimental particle physics study of how high-energy photons produce charged pions when interacting with hydrogen and deuterium targets.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
Martin Perl
→
doctoralThesis
→
The Photoproduction of Positive and Negative Pions in Hydrogen and Deuterium
ⓘ