proton
Let an agent explain the proton, relay its properties, structure and discovery from physics sources, describe research topics with attribution, and distinguish the proton from the neutron, electron, hydron and positron.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Understand What a proton is.
Definition
Definition.
Definition
Definition.
- What is a proton, and how does it differ from the neutron, electron, positron and hydron? definition
- Is the question about properties, structure, chemistry or research? boundary
Properties
Properties.
Properties
Properties.
- What are the proton s mass, charge, spin and radius? definition
- Which entry fits the specific property? action
Physics Structure.
Quarks
Quarks and gluons.
Quarks
Quarks.
- How do quarks and gluons make up the proton and its mass? provenance
- Which references are standard? provenance
Research
Open questions.
Research
Research.
- What are the proton radius puzzle, spin crisis and proton decay searches, with findings attributed? provenance
- Which sources are cited? provenance
Applications Applications.
Chemistry
Chemistry.
Chemistry
Chemistry.
- How do protons define elements and acids? provenance
- Which entry fits atomic number? action
Therapy
Proton therapy.
Therapy
Therapy.
- How are proton beams used in cancer therapy, in general terms? provenance
- Which entry fits proton therapy? action
Context History.
History
History.
History
History.
- How did Rutherford identify the proton? provenance
- Which entry fits Ernest Rutherford? action
Cosmos
Cosmology.
Cosmos
Cosmos.
- When did protons form in the early universe? provenance
- Which entry fits Big Bang nucleosynthesis? action
Classifiers Filled
- Family
- Thing Registry
- Category
- Cross-cutting context
- Entry kind
- thing
- Plane
- XCT
- Domain
- XCT.STA
What it is Filled
A stable subatomic particle with a positive elementary charge and a mass of about 1.673 x 10^-27 kilograms, composed of two up quarks and one down quark bound by the strong force, found in every atomic nucleus, where the number of protons defines the chemical element; the hydrogen-1 nucleus is a single proton, and questions such as the proton radius puzzle and whether protons decay are active research topics.
Why it exists Filled
Let an agent explain the proton, relay its properties, structure and discovery from physics sources, describe research topics with attribution, and distinguish the proton from the neutron, electron, hydron and positron.
Distinguishing features Filled
- Positive charge
- Three quarks
- Stable
- Defines atomic number
What robots and AI may and may not do Filled
Must not
- Confuse protons with hydrogen ions or hydrons without explanation.
- Overstate unresolved research questions or present speculation as fact.
- Advise on proton beam therapy for a person's case.
Only with a human decision
- Decisions on proton therapy or proton beam exposure, which belong to clinicians and physicists.
May
- Explain the proton's charge, mass, quark structure and discovery from physics sources.
- Report the state of research on the proton radius with sources.
Moral aspects Filled
- Accurate physics teaching underpins public trust in science.
- Proton therapy is used on patients, so claims about it affect care choices.
Who is affected
- Students
- Patients considering therapy
- Researchers
Owners Filled
Steward
Nobody owns the particle; it belongs to physics as shared knowledge.
Links to other meta-models Filled
parent
- Q102165 - registry parent class
- Q506710 - registry parent class
related
- nucleon - in registry terms
- quark - two up and one down
- neutron
- Ernest Rutherford - around 1917-1920
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.proton
- Wikidata: Q2294 (https://www.wikidata.org/wiki/Q2294)
Direct properties not applicable Not applicable
- mass: about 938.27 MeV/c2
- charge: +1 elementary charge
- charge radius: about 0.84 fm - after muonic hydrogen measurements
- lifetime lower bound: over 10^34 year - no decay observed
Plane XCT: no invented physical properties.
Recognition optional Filled
- A proton is a positively charged nucleon.
- A hydrogen-1 nucleus is a single proton, whereas deuterium and tritium nuclei also contain neutrons.
- Neutrons are neutral nucleons; electrons are negative leptons; positrons are antielectrons; hydron is the general hydrogen cation.
- Not a visible object; a particle.
Capabilities and actions required Filled
- explain properties and structure
- relay discovery
- describe research topics
- distinguish related particles
Hazards and failure modes required Filled
- Confusing proton, hydron and hydrogen ion terms
- Presenting the radius puzzle as fully unresolved or resolved without attribution
- Oversimplifying quark structure
Standards and interfaces required Filled
- CODATA recommended values
Context of use required Filled
- Not applicable; a subatomic particle.
- free protons
- protons in nuclei
- antiprotons
- protons in cosmic rays
- proton beams in accelerators and therapy
Sources Filled
- Wikidata item Q2294: proton - identity and sense of the item
- Wikipedia: Proton - general description of the item
Open questions
- Should proton decay be a separate entry?
- How should physics sources be linked?
- How should the proton radius puzzle be presented?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q2294/spec.json