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Parity-odd asymmetries in the electromagnetic decays of compound nuclei cansometimes be amplified above values expected from simple dimensional estimatesby the complexity of compound nuclear states. In this work we use a statisticalapproach to estimate the root mean square (RMS) of the distribution of expectedparity-odd correlations $\vec{s_{n}} \cdot \vec{k_{\gamma}}$, where $\vec{s_{n}}$ is the neutron spin and $\vec{k_{\gamma}}$ is the momentum of thegamma, in the integrated gamma spectrum from the capture of cold polarizedneutrons on Al, Cu, and In and we present measurements of the asymmetries inthese and other nuclei. Based on our calculations, large enhancements ofasymmetries were not predicted for the studied nuclei and the statisticalestimates are consistent with our measured upper bounds on the asymmetries.Comment: 22 pages, 6 figure

Upper bounds on parity-violating γ-ray asymmetries in compound nuclei from polarized cold neutron capture