Abstract
The random-matrix theory for the effects of time-reversal non-invariance (TRNI) on energy level, strength and cross-section fluctuations in complex systems is reviewed. Applied to the compound-nuclear data this gives bounds on rms TRNI matrix elements. Using a fluctuation-free form of statistical spectroscopy bounds on α, the relative magnitude of the TRNI nucleon-nucleon interaction, is deduced. In all three cases we find α ≲ (2–3) × 10−3 at high (∼ 99%) statistical confidence. Suggestions are made about experiments which should improve the bounds.
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Pandey, A. Tests of time-reversal invariance in complex systems. Pramana - J Phys 32, 489–495 (1989). https://doi.org/10.1007/BF02845979
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DOI: https://doi.org/10.1007/BF02845979