Assertion: electron's charge | /r/CapableOf | let d quark
Facets:
value: in the neutron decay
type: TEMPORAL
value: at a quark level
type: OTHER
Source sentences:
text: At a quark level, the charge changing weak interactions let a d quark in the neutron decay to a u quark in the proton by giving off a virtual negative W¯ boson, and the W¯ becomes an electron plus an anti electron neutrino.