exchange degeneracy

exchange degeneracy

[iks′chānj dē′jen·ə·rə·sē]
(particle physics)
Coincidence of two Regge trajectories for particles having the same quantum numbers (except for parity, charge parity, and G parity) where one would have expected separate trajectories for alternate Regge recurrences.
(quantum mechanics)
An exchange process that leads back to the original configuration. Also known as exchange symmetry.
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