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Results tagged with pions
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user 129496
Pions, or pi mesons, are particles that consist of a quark and an antiquark of either up or down flavour. The exchange of virtual pions provides an explanation for the residual strong force between nucleons.
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Questions about subnuclear decay: helicity and parity.
I read that the process (where the last is the antineutrino of electron): $$ \pi^{-} \Rightarrow e^{-} + \hat{\nu}$$
is disadvantage because of spins and parity argumentations, but why? In the 99% …
