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Constraints on Parity-Even Time Reversal Violation in the Nucleon-Nucleon System and Its Connection to Charge Symmetry Breaking

Markus Simonius
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Abstract

Parity-even time reversal violation (TRV) in the nucleon-nucleon interaction is reconsidered. The TRV $ρ$-exchange interaction on which recent analyses of measurements are based is necessarily also charge-symmetry breaking (CSB). Limits on its strength $\bar{g}_ρ$ relative to regular $ρ$-exchange are extracted from recent CSB experiments in neutron-proton scattering. The result $\bar{g}_ρ\le 6.7\times 10^{-3}$ (95% CL) is considerably lower than limits inferred from direct TRV tests in nuclear processes. Properties of $a_1$-exchange and limit imposed by the neutron EDM are briefly discussed.

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Markus Simonius. 1997-05-13. Constraints on Parity-Even Time Reversal Violation in the Nucleon-Nucleon System and Its Connection to Charge Symmetry Breaking. https://doi.org/10.1103/physrevlett.78.4161

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