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Additional
Weak interaction
English Wikipedia - The Free Encyclopedia
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Weak interaction
In
particle physics
, the
weak interaction
is the mechanism responsible for the
weak force
or
weak nuclear force
, one of the four known
fundamental interactions
of nature, alongside the
strong interaction
,
electromagnetism
, and
gravitation
. The weak interaction is responsible for the
radioactive decay
of
subatomic particles
, and it plays an essential role in
nuclear fission
. The theory of the weak interaction is sometimes called
quantum flavordynamics
(
QFD
), in analogy with the terms
QCD
and
QED
, but the term is rarely used because the weak force is best understood in terms of
electro-weak theory
(EWT).
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