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Bound on time-reversal noninvariance in the nuclear Hamiltonian

Journal Article · · Phys. Rev. Lett.; (United States)
Energy-level fluctuations are calculated by random-matrix methods, for time-reversal noninvariant (TRNI) Hamiltonians. The theory, applied to the data, shows that in the neutron and proton resonance regions, for heavy and intermediate nuclei (i.e., respectively), the local rms off-diagonal multiparticle H(TRNI) matrix element < or approx. = D/10, with D the level spacing. Spectral averaging methods reduce this to a bound on the nucleon-nucleon TRNI vs TRI interactions. First calculations, for /sup 169/Er, give a 1% upper bound.
Research Organization:
Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627
OSTI ID:
5598722
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 54:21; ISSN PRLTA
Country of Publication:
United States
Language:
English