Test of time-reversal symmetry in the proton-deuteron scattering

TL;DR

This paper investigates the potential of proton-deuteron scattering experiments to detect time-reversal symmetry violation, analyzing the effects of meson exchange and interactions on the null-test signal across energies.

Contribution

It demonstrates that the rho-meson exchange does not contribute to the null-test signal and provides energy-dependent calculations of the cross section variations due to strong and Coulomb interactions.

Findings

Rho-meson exchange contribution to the null-test signal vanishes.

Energy dependence of the cross section variation is calculated in the GeV range.

Strong and Coulomb interactions influence the null-test signal.

Abstract

The integrated cross section $\widetilde\sigma$ for a special type of double polarized proton-deuteron scattering constitutes a null test forvtime-invariance violating but P-parity conserving effects. Using the Glauber theory for the $pd$ elastic scattering and different types of phenomenological T-odd P-even NN-interactions we show that the contribution of the lowest mass meson exchange, i.e. the $\rho$-meson, to the null-test signal $\widetilde\sigma$ vanishes. Variation of the cross section $\widetilde\sigma$ due to strong hadronic and Coulomb interaction is studied and its energy dependence is calculated in the GeV region.