Assertion: electron | /r/HasProperty | emitted with negative helicity
Facets:
value: in beta decay
type: TEMPORAL
Source sentences:
text: After the discovery of parity non-conservation (see History), it was found that, in beta decay, electrons are emitted mostly with negative helicity, i.e., they move, naively speaking, like left-handed screws driven into a material (they have negative longitudinal polarization).