Limits of time-reversal violating interaction from compound nuclear experiments

Abstract

Mean square matrix elements of the time reversal invariance violating (TRIV) interaction between the compound nuclear states are calculated within the statistical model, using the explicit form of the TRIV interaction via the ϱ-meson exchange. From the comparison of the calculated values with the data known for the p+ 27 Al↔ 24 Mg+ α reaction, and for γ-correlation measurements in the 113Cd( n, γ) 114Cd process, the bounds on the TRIV constant are obtained as … g ϱ… ≲ 1.8 × 10 −2 and … g ϱ… ≲ 1.1 × 10 −2 . The sensitivity of the recently proposed detailed balance test experiments on ioslated res in 32S to the value of g ϱ is shown to reach valuaes as high as g ϱ ∼ 10 −4 .