Physics:Quantum proton: Difference between revisions
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{{Short description| | {{Short description|Stable positively charged baryon in ordinary matter}} | ||
{{Quantum matter backlink|Composite particles}} | {{Quantum matter backlink|Composite particles}} | ||
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'''proton''' is a Book II topic in the Quantum Collection. A quantum proton is a positively charged baryon with valence-quark content uud. It is the nucleus of ordinary hydrogen and, together with neutrons, forms atomic nuclei. Although often treated as a particle, the proton has rich internal structure from quarks, gluons, and sea partons. A quantum proton is a positively charged baryon with valence-quark content uud. It is the nucleus of ordinary hydrogen and, together with neutrons, forms atomic nuclei. Although often treated as a particle, the proton has rich internal structure from quarks, gluons, and sea partons. Composite hadrons are described by quantum chromodynamics. Their observable properties arise from valence constituents, gluon fields, sea quark-antiquark pairs, orbital motion, and confinement. | |||
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[[File: | [[File:Quantum_proton_yellow.png|thumb|280px|Proton: uud baryon with positive electric charge.]] | ||
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== | == Structure == | ||
Composite hadrons are described by quantum chromodynamics. Their observable properties arise from valence constituents, gluon fields, sea quark-antiquark pairs, orbital motion, and confinement.<ref>{{cite book |last=Schwartz |first=Matthew D. |title=Quantum Field Theory and the Standard Model |publisher=Cambridge University Press |year=2014 |id=ISBN 978-1-107-03473-0}}</ref> | |||
== Experimental role == | |||
Hadrons are reconstructed through masses, lifetimes, decay channels, scattering patterns, and production rates. Their spectra and decays provide detailed tests of strong-interaction dynamics.<ref>{{cite journal |collaboration=Particle Data Group |title=Review of Particle Physics |journal=Physical Review D |volume=110 |issue=3 |pages=030001 |year=2024 |id=DOI 10.1103/PhysRevD.110.030001}}</ref> | |||
== Description == | |||
'''proton''' is a matter-scale concept used to organize how quantum theory describes atoms, particles, fields, condensed matter, plasma, or spacetime-related systems. In the Quantum Collection it is placed by scale so the reader can move from materials and molecules down to subatomic degrees of freedom. | |||
== Quantum context == | |||
At this scale, the relevant behavior is controlled by quantized states, interactions, conservation laws, and the way excitations or particles are observed. The concept is normally linked to measurable properties such as energy, momentum, charge, spin, spectra, scattering rates, or collective modes. | |||
== Role in the collection == | |||
This page provides a compact reference point for related pages in Book II. It should be read together with nearby matter-scale topics and the corresponding foundations in [[Physics:Quantum mechanics|quantum mechanics]].<ref name="matter-wiki">{{cite web |url=https://en.wikipedia.org/wiki/Quantum_mechanics |title=Quantum mechanics |website=Wikipedia |access-date=2026-05-20}}</ref> | |||
=See also= | =See also= | ||
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{{Author|Harold Foppele}} | {{Author|Harold Foppele}} | ||
{{Sourceattribution| | {{Sourceattribution|Physics:Quantum proton|1}} | ||
Latest revision as of 11:35, 22 May 2026
proton is a Book II topic in the Quantum Collection. A quantum proton is a positively charged baryon with valence-quark content uud. It is the nucleus of ordinary hydrogen and, together with neutrons, forms atomic nuclei. Although often treated as a particle, the proton has rich internal structure from quarks, gluons, and sea partons. A quantum proton is a positively charged baryon with valence-quark content uud. It is the nucleus of ordinary hydrogen and, together with neutrons, forms atomic nuclei. Although often treated as a particle, the proton has rich internal structure from quarks, gluons, and sea partons. Composite hadrons are described by quantum chromodynamics. Their observable properties arise from valence constituents, gluon fields, sea quark-antiquark pairs, orbital motion, and confinement.
Structure
Composite hadrons are described by quantum chromodynamics. Their observable properties arise from valence constituents, gluon fields, sea quark-antiquark pairs, orbital motion, and confinement.[1]
Experimental role
Hadrons are reconstructed through masses, lifetimes, decay channels, scattering patterns, and production rates. Their spectra and decays provide detailed tests of strong-interaction dynamics.[2]
Description
proton is a matter-scale concept used to organize how quantum theory describes atoms, particles, fields, condensed matter, plasma, or spacetime-related systems. In the Quantum Collection it is placed by scale so the reader can move from materials and molecules down to subatomic degrees of freedom.
Quantum context
At this scale, the relevant behavior is controlled by quantized states, interactions, conservation laws, and the way excitations or particles are observed. The concept is normally linked to measurable properties such as energy, momentum, charge, spin, spectra, scattering rates, or collective modes.
Role in the collection
This page provides a compact reference point for related pages in Book II. It should be read together with nearby matter-scale topics and the corresponding foundations in quantum mechanics.[3]
See also
Table of contents (84 articles)
Index
Full contents
References
- ↑ Schwartz, Matthew D. (2014). Quantum Field Theory and the Standard Model. Cambridge University Press. ISBN 978-1-107-03473-0.
- ↑ "Review of Particle Physics". Physical Review D 110 (3): 030001. 2024. DOI 10.1103/PhysRevD.110.030001.
- ↑ "Quantum mechanics". https://en.wikipedia.org/wiki/Quantum_mechanics.
Source attribution: Physics:Quantum proton
