weak interaction

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weak interaction

1. One of the four fundamental interactions of nature, mediated by the intermediate vector bosons and acting on leptons and quarks. It is responsible for the decay of many hadrons, for the beta decay of nuclei, and for the interactions of neutrinos. The weak interaction is weaker than the strong and electromagnetic interactions, but stronger than the gravitational interaction.
2. An instance of this interaction.

weak interaction


weak force

(General Physics) physics an interaction between elementary particles that is responsible for certain decay processes, operates at distances less than about 10–15 metres, and is 1012 times weaker than the strong interaction. The weak interaction and electromagnetic interactions are now described by the unifying electroweak theory. Also called: weak nuclear interaction or weak nuclear force See interaction2, electroweak interaction

weak′ interac′tion

the interaction between elementary particles and the three intermediate vector bosons that carry the weak force.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.weak interaction - (physics) an interaction between elementary particles involving neutrinos or antineutrinos that is responsible for certain kinds of radioactive decay; mediated by intermediate vector bosons
natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"
fundamental interaction, interaction - (physics) the transfer of energy between elementary particles or between an elementary particle and a field or between fields; mediated by gauge bosons
References in periodicals archive ?
As one possible explanation for that site specificity, the research team hypothesized that weak interactions between intrinsically disordered regions of transcription factors and other transcriptional molecules, along with specific interactions between transcription factors and particular DNA elements, might determine whether a condensate forms at a particular stretch of DNA.
Furthermore, Briguez said that the media's role as watchdogs is an "element of national objective" which, if disrupted due to weak interactions, "is capable of negating the required atmosphere for national survival and development."
Weak interactions with the environment can never collapse its state, making it more robust as a quantum memory.
Roger M Walser, his colleague, said that two of Sudarshan's discoveries, V - A theory of weak interactions and the use of coherent state representation in optics were attributed as work by others and they were awarded Physics noble prize instead of Sudarshan.
He discovered the V-A theory of weak interactions while working on his PhD thesis under the late Robert E.
Thus, interaction with the herbicide binding groups is likely to be more difficult, allowing weak interactions of the Van der Waals type (Figure 3), with physical characteristics overlapping chemical bonds occurring in the acid medium forte.
to describe the neutrino and its weak interactions" [4, p.
The primitive unit cell of Mt was optimized with the generalized gradient approximation (GGA) for the exchange-correlation potential (PW91) which is appropriate for the relatively weak interactions present in the models studied.
(We use the Standard Model of weak interactions, the system of units [??] = c = 1, and the Boltzmann constant [k.sub.B] = 1.)
There, they combine with the protons through weak interactions, one of the four types of interactions that take place between particles in the universe.
Here, researchers have developed new methods for exploiting weak interactions to control molecular association.
It was revealed from the experimental data that Weak interactions between fluoride and all the selected adsorbents have been observed except Amb.