first-class current

first-class current

[¦fərst ‚klas ′kə·rənt]
(particle physics)
A weak-interaction current whose charge symmetry (or G parity) properties are the same as those of currents which arise in the Fermi theory of beta decay.
References in periodicals archive ?
Dangers Charley Hoffman has first-class current (19-2-7-14-30-13-19) and course form (6-31-21) but looks more of a finishingposition sell than a win bet.