exchange degeneracy[iks′chānj dē′jen·ə·rə·sē]
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.
An exchange process that leads back to the original configuration. Also known as exchange symmetry.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.