Tests of Time-Reversal Symmetry in Compound-Nucleus Reactions
- 12 May 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 56 (19) , 2012-2015
- https://doi.org/10.1103/physrevlett.56.2012
Abstract
Using a generating function with both commuting and anticommuting variables, we calculate perturbatively the violation of the principle of detailed balance due to breaking of time-reversal symmetry in a statistical nuclear reaction. We apply this result to the best data and establish upper bounds for the strength of, and the spreading width associated with, the symmetry-breaking part of the Hamiltonian. We argue that the spreading width is the fundamental parameter of the theory. A way of further improving the upper bounds is suggested.Keywords
This publication has 15 references indexed in Scilit:
- Grassmann integration in stochastic quantum physics: The case of compound-nucleus scatteringPhysics Reports, 1985
- Compound-nucleus scattering in the presence of direct reactionsPhysics Letters B, 1985
- Bound on Time-Reversal Noninvariance in the Nuclear HamiltonianPhysical Review Letters, 1985
- Statistical theory of nuclear reactions and the Gaussian orthogonal ensembleAnnals of Physics, 1984
- Improved Experimental Test of Detailed Balance and Time Reversibility in the ReactionsPhysical Review Letters, 1983
- CP Violation and K DecaysAnnual Review of Nuclear Science, 1976
- Upper limit on a time reversal noninvariant part of Wigner's random matrix modelPhysical Review C, 1976
- The statistical theory of nuclear reactions for strongly overlapping resonances as a theory of transport phenomenaPhysics Reports, 1975
- Evidence for theDecay of theMesonPhysical Review Letters, 1964
- Cross-section fluctuations in the Al27(p, α)Mg24 reactionNuclear Physics, 1964