Experimental test of parity conservation in beta decay
E400611
Experimental test of parity conservation in beta decay is the landmark 1956–57 physics experiment led by Chien-Shiung Wu that demonstrated the violation of parity symmetry in weak interactions, overturning a fundamental assumption of particle physics.
All labels observed (4)
How this entity was disambiguated
This entity first appeared as the object of triple T3921548 — 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.
Target entity: Experimental test of parity conservation in beta decay Context triple: [Chien-Shiung Wu, notableWork, Experimental test of parity conservation in beta decay]
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A.
Fermi theory of beta decay
The Fermi theory of beta decay is Enrico Fermi’s pioneering quantum field theory model that explains beta decay as a weak interaction process mediated by a four-fermion contact interaction, laying the groundwork for modern weak interaction theory.
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B.
Kobayashi–Maskawa paper on CP violation (1973)
The Kobayashi–Maskawa paper on CP violation (1973) is a landmark theoretical work that extended the quark model to three generations, providing the mechanism for CP violation in the Standard Model and later underpinning the Nobel Prize in Physics for its authors.
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C.
The Neutron (1932 paper)
The Neutron (1932 paper) is James Chadwick’s landmark publication that announced and characterized the neutron, fundamentally reshaping nuclear physics and earning him the Nobel Prize in Physics.
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D.
Aspect experiment on Bell inequality tests (1982)
The Aspect experiment on Bell inequality tests (1982) was a landmark series of quantum physics experiments that provided strong evidence for quantum entanglement and the violation of Bell's inequalities, challenging local hidden-variable theories.
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E.
Baryon Antibaryon Symmetry Experiment
The Baryon Antibaryon Symmetry Experiment (BASE) is a high-precision particle physics experiment that measures the properties of protons and antiprotons to test fundamental symmetries such as CPT invariance.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Experimental test of parity conservation in beta decay Target entity description: Experimental test of parity conservation in beta decay is the landmark 1956–57 physics experiment led by Chien-Shiung Wu that demonstrated the violation of parity symmetry in weak interactions, overturning a fundamental assumption of particle physics.
-
A.
Fermi theory of beta decay
The Fermi theory of beta decay is Enrico Fermi’s pioneering quantum field theory model that explains beta decay as a weak interaction process mediated by a four-fermion contact interaction, laying the groundwork for modern weak interaction theory.
-
B.
Kobayashi–Maskawa paper on CP violation (1973)
The Kobayashi–Maskawa paper on CP violation (1973) is a landmark theoretical work that extended the quark model to three generations, providing the mechanism for CP violation in the Standard Model and later underpinning the Nobel Prize in Physics for its authors.
-
C.
The Neutron (1932 paper)
The Neutron (1932 paper) is James Chadwick’s landmark publication that announced and characterized the neutron, fundamentally reshaping nuclear physics and earning him the Nobel Prize in Physics.
-
D.
Aspect experiment on Bell inequality tests (1982)
The Aspect experiment on Bell inequality tests (1982) was a landmark series of quantum physics experiments that provided strong evidence for quantum entanglement and the violation of Bell's inequalities, challenging local hidden-variable theories.
-
E.
Baryon Antibaryon Symmetry Experiment
The Baryon Antibaryon Symmetry Experiment (BASE) is a high-precision particle physics experiment that measures the properties of protons and antiprotons to test fundamental symmetries such as CPT invariance.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
landmark experiment
ⓘ
physics experiment ⓘ weak interaction experiment ⓘ |
| alsoKnownAs |
Wu experiment
ⓘ
Wu experiment ⓘ
surface form:
Wu parity violation experiment
|
| conductedBy | Chien-Shiung Wu ⓘ |
| confirmedHypothesisOf |
C. N. Yang
ⓘ
surface form:
Chen-Ning Yang
T. D. Lee ⓘ
surface form:
Tsung-Dao Lee
|
| contributedTo |
Nobel Prize in Physics
ⓘ
surface form:
Nobel Prize in Physics 1957 for Lee and Yang
|
| country |
United States of America
ⓘ
surface form:
United States
|
| demonstrated |
parity violation
ⓘ
violation of parity symmetry in weak interactions ⓘ |
| field |
nuclear physics
ⓘ
particle physics ⓘ |
| historicalSignificance |
marked the first clear observation of parity violation
ⓘ
triggered major revisions of weak interaction theory ⓘ |
| influenced |
Standard Model
ⓘ
surface form:
Standard Model of particle physics
|
| interactionTypeStudied | weak interaction ⓘ |
| isExampleOf |
precision low-temperature experiment
ⓘ
symmetry test in physics ⓘ |
| ledBy | Chien-Shiung Wu ⓘ |
| measured |
angular distribution of emitted electrons
ⓘ
asymmetry of beta emission relative to nuclear spin direction ⓘ |
| overturnedAssumption | universal parity conservation in fundamental interactions ⓘ |
| performedAt |
Columbia University
ⓘ
Nevis Laboratory ⓘ |
| preceded |
experiments on parity violation in muon decay
ⓘ
experiments on parity violation in pion decay ⓘ |
| providedEvidenceFor | Lee–Yang theory of parity nonconservation ⓘ |
| publicationYear | 1957 ⓘ |
| publishedIn | Physical Review ⓘ |
| relatedTo |
CP violation
ⓘ
mirror symmetry ⓘ parity transformation ⓘ |
| showed | nonconservation of parity in weak interactions ⓘ |
| showedNotViolatedIn |
electromagnetic interaction
ⓘ
strong interaction ⓘ |
| studies | beta decay ⓘ |
| tests |
parity conservation
ⓘ
parity symmetry ⓘ |
| timePeriod | 1956–1957 ⓘ |
| usedIsotope |
60Co
ⓘ
cobalt-60 ⓘ |
| usedMethod |
low-temperature nuclear orientation
ⓘ
polarization of cobalt-60 nuclei in a magnetic field ⓘ |
| usedProcess | beta decay of polarized cobalt-60 nuclei ⓘ |
| year |
1956
ⓘ
1957 ⓘ |
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Subject: Experimental test of parity conservation in beta decay Description of subject: Experimental test of parity conservation in beta decay is the landmark 1956–57 physics experiment led by Chien-Shiung Wu that demonstrated the violation of parity symmetry in weak interactions, overturning a fundamental assumption of particle physics.
Referenced by (4)
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