The theoretical estimates of the $P$-conserving $T$-invariance violation in neutron transmission are reexamined. It is shown that the previously omitted factors of dynamical enhancement caused by the $T$-nonconserving interaction of the two closely lying resonances might sum up to an overall amplification of the effect by 3-5 orders of magnitude.

• Received 23 March 1988

DOI:https://doi.org/10.1103/PhysRevLett.60.2250