TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
DECAY THEORY [3 records]
Record 1 - internal organization data 2023-10-17
Record 1, English
Record 1, Subject field(s)
- Atomic Physics
- Space Physics
Record 1, Main entry term, English
- neutron dark decay
1, record 1, English, neutron%20dark%20decay
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- nuclear dark decay 1, record 1, English, nuclear%20dark%20decay
correct
- dark decay 2, record 1, English, dark%20decay
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A hypothetical type of decay occurring when a neutron located in the halo of a nucleus ejects a proton. 3, record 1, English, - neutron%20dark%20decay
Record number: 1, Textual support number: 1 CONT
... there [is] a theory, a very hypothetical idea, that you could observe dark matter with a very particular type of nucleus... This theory centered on what it calls a dark decay. It posited that certain unstable nuclei, nuclei that naturally fall apart, could jettison dark matter as they crumbled. 4, record 1, English, - neutron%20dark%20decay
Record 1, French
Record 1, Domaine(s)
- Physique atomique
- Physique spatiale
Record 1, Main entry term, French
- décroissance sombre
1, record 1, French, d%C3%A9croissance%20sombre
proposal, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - external organization data 2011-10-28
Record 2, English
Record 2, Subject field(s)
- Atomic Physics
- Nuclear Physics
- Chemistry
- Compartment - Canadian Nuclear Safety Commission
Record 2, Main entry term, English
- daughter
1, record 2, English, daughter
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- daughter product 2, record 2, English, daughter%20product
correct, standardized
- daughter nuclide 3, record 2, English, daughter%20nuclide
correct, see observation
- daughter radionuclide 4, record 2, English, daughter%20radionuclide
correct, see observation
- daughter radioactive nuclide 5, record 2, English, daughter%20radioactive%20nuclide
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A nuclide, stable or radioactive, formed by radioactive decay of another nuclide, which in this context is called the parent. 6, record 2, English, - daughter
Record number: 2, Textual support number: 1 CONT
decay chain: A succession of radionuclides, each one formed by the decay of the previous one. In a radioactive decay chain the decaying nuclide is termed the "mother" radionuclide and the nuclide it decays to is termed the "daughter" nuclide. 7, record 2, English, - daughter
Record number: 2, Textual support number: 2 CONT
Holmes & Holmes... give a simple summary of the theory of how ages are deduced from the radioactive decay of an unstable parent isotope to a more stable isotope of a different element(daughter)... the parent-daughter relationships... are of major interest for dating rocks and ores. 8, record 2, English, - daughter
Record number: 2, Textual support number: 1 OBS
"Nuclide" is here an elliptic term. Strictly speaking, it is not a synonym for "radionuclide," which is a specific: a radioactive nuclide. 5, record 2, English, - daughter
Record number: 2, Textual support number: 2 OBS
daughter product: term standardized by ISO in 1997. 9, record 2, English, - daughter
Record 2, French
Record 2, Domaine(s)
- Physique atomique
- Physique nucléaire
- Chimie
- Tiroir - Commission canadienne de sûreté nucléaire
Record 2, Main entry term, French
- produit de filiation
1, record 2, French, produit%20de%20filiation
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- nucléide issu par filiation 2, record 2, French, nucl%C3%A9ide%20issu%20par%20filiation
correct, see observation, masculine noun
- radionucléide produit par filiation 3, record 2, French, radionucl%C3%A9ide%20produit%20par%20filiation
correct, see observation, masculine noun
- radionucléide de filiation 4, record 2, French, radionucl%C3%A9ide%20de%20filiation
correct, see observation, masculine noun
- descendant 5, record 2, French, descendant
correct, masculine noun, standardized
- descendant radioactif 6, record 2, French, descendant%20radioactif
correct, masculine noun, standardized
- nucléide radioactif de filiation 7, record 2, French, nucl%C3%A9ide%20radioactif%20de%20filiation
correct, masculine noun
- élément de filiation 4, record 2, French, %C3%A9l%C3%A9ment%20de%20filiation
masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
[Tout] nucléide qui suit un radionucléide spécifié dans une chaîne de désintégration. [Définition normalisée par l'ISO.] 8, record 2, French, - produit%20de%20filiation
Record number: 2, Textual support number: 1 CONT
On appelle produits de filiation les différents produits des désintégrations successives à partir du nucléide radioactif initial, appelé «père»; tous ces produits forment une «famille radioactive». 9, record 2, French, - produit%20de%20filiation
Record number: 2, Textual support number: 1 OBS
Le terme «nucléide» possède un sens plus large que «radionucléide» qui ne se rapporte qu'aux nucléides radioactifs. Il est ici employé comme synonyme elliptique, acceptable lorsque le contexte est suffisamment clair. 7, record 2, French, - produit%20de%20filiation
Record number: 2, Textual support number: 2 OBS
descendant; descendant radioactif : termes normalisés par l'ISO en 1997. 10, record 2, French, - produit%20de%20filiation
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Física atómica
- Física nuclear
- Química
- Compartimiento - Comisión Canadiense de Seguridad Nuclear
Record 2, Main entry term, Spanish
- hijo radiactivo
1, record 2, Spanish, hijo%20radiactivo
correct, masculine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
- descendiente 2, record 2, Spanish, descendiente
correct, masculine noun
- descendiente radiactivo 3, record 2, Spanish, descendiente%20radiactivo
correct, masculine noun
- núclido descendiente 4, record 2, Spanish, n%C3%BAclido%20descendiente
correct, masculine noun
- nucleido descendiente 5, record 2, Spanish, nucleido%20descendiente
correct, masculine noun
- nucleido de filiación 6, record 2, Spanish, nucleido%20de%20filiaci%C3%B3n
correct, masculine noun
- producto de filiación 5, record 2, Spanish, producto%20de%20filiaci%C3%B3n
correct, masculine noun
- producto radiactivo descendiente 6, record 2, Spanish, producto%20radiactivo%20descendiente
masculine noun
- radionúclido descendiente 7, record 2, Spanish, radion%C3%BAclido%20descendiente
correct, masculine noun
- radionúclido hijo 7, record 2, Spanish, radion%C3%BAclido%20hijo
correct, masculine noun
- sucesor radiactivo 8, record 2, Spanish, sucesor%20radiactivo
masculine noun
- hija radiactiva 9, record 2, Spanish, hija%20radiactiva
feminine noun
Record 2, Textual support, Spanish
Record 2, Key term(s)
- núclido de filiación
- núclido radiactivo de filiación
- núclido radiactivo descendiente
- nucleido radiactivo descendiente
- radionucleido descendiente
- radionucleido hijo
- nucleido radiactivo de filiación
- núclido hijo
- nucleido hijo
Record 3 - internal organization data 2001-10-17
Record 3, English
Record 3, Subject field(s)
- Mathematics
Record 3, Main entry term, English
- vertex
1, record 3, English, vertex
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
Point at which two lines or planes meet to form an angle. 2, record 3, English, - vertex
Record number: 3, Textual support number: 1 CONT
The basic element of a quantum field theory is the "vertex, "in which one particle disintegrates to yield two or more other particles. The vertex for quantum electrodynamics is the intersection of two lines that represent electrons or positrons and one line that represents a photon. The vertex can describe the creation of an electron-positron pair by a decaying photon, the annihilation of an electron-positron pair creating a photon or the decay of an electron into a second electron and a photon. 3, record 3, English, - vertex
Record 3, French
Record 3, Domaine(s)
- Mathématiques
Record 3, Main entry term, French
- vertex
1, record 3, French, vertex
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
L'élément fondamental d'une théorie quantique du champ est le «vertex» c'est-à-dire le point en lequel une particule se désintègre pour donner deux particules ou plus. Le vertex de l'électro-dynamique quantique est l'intersection de deux lignes représentant les électrons ou les positrons et d'une ligne représentant un photon. Ce vertex peut décrire la création d'une paire électron-positron par «désintégration» d'un photon, l'annihilation d'une paire électron-positron créant un photon ou encore la «désintégration» d'un électron en un électron et un photon. 2, record 3, French, - vertex
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Matemáticas
Record 3, Main entry term, Spanish
- vértice
1, record 3, Spanish, v%C3%A9rtice
correct, masculine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 DEF
Punto donde se encuentran los dos lados de un ángulo. 2, record 3, Spanish, - v%C3%A9rtice
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