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

Abstract

Parity-even time reversal violation (TRV) in the nucleon-nucleon interaction is reconsidered. The TRV $\rho$-exchange interaction on which recent analyses of measurements are based is necessarily also charge-symmetry breaking (CSB). Limits on its strength ${\bar{g}}_{\rho }$ relative to regular $\rho$-exchange are extracted from recent CSB experiments in neutron-proton scattering. The result ${\bar{g}}_{\rho }\le 6.7\times 10^{-3}$ (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.

RevTex, 8 pages. Factor ten error in cited neutron EDM corrected, discussion and two references added

References in corpus (4)

• Effective Lagrangians and Parity-Conserving Time-Reversal Violation at Low Energies
• A Microscopic T-Violating Optical Potential: Implications for Neutron-Transmission Experiments
• Model Analysis of Time Reversal Symmetry Test in the Caltech Fe-57 Gamma-Transition Experiment
• Limits of Time-Reversal Violating Interaction from Compound Nuclear Experiments

Cited by in corpus (11)

• Constraints on T-Odd, P-Even Interactions from Electric Dipole Moments
• Polarized proton-deuteron scattering as a test of time-reversal invariance
• New approach to search for parity-even and parity-odd time-reversal violation beyond the Standard Model in a storage ring
• Parity-Even and Time-Reversal-Odd Neutron Optical Potential in Spinning Matter Induced by Gravitational Torsion
• Testing T Invariance in the Interaction of Slow Neutrons with Aligned Nuclei
• Extraction of bounds on time-reversal non-invariance from neutron reactions
• Test of time-reversal symmetry in the proton-deuteron scattering
• Analog-antianalog isospin mixing in ${}^{47}$K ${\beta }^{-}$ decay
• Symmetries and Symmetry Breaking
• Constraints on a Parity-Conserving/Time-Reversal-Non-Conserving Interaction
• Symmetries and Symmetry Breaking