Polarized proton-deuteron scattering as a test of time-reversal invariance

TL;DR

This paper proposes a null-test for time-reversal invariance violation in polarized proton-deuteron scattering, calculating the observable within spin-dependent Glauber theory across 100-1000 MeV energies.

Contribution

It introduces a detailed calculation of the null-test observable considering both S- and D-wave components of the deuteron wave function, highlighting the D-wave's significance.

Findings

The D-wave significantly influences the magnitude and energy dependence of the observable.

Maximum signal shifts to 700-800 MeV when including the D-wave.

The study provides predictions for T-violation effects in polarized scattering experiments.

Abstract

Scattering of protons with transversal polarization $p_y^p$ on deuterons with tensor polarization $P_{xz}$ provides a null-test signal for time-reversal (T) invariance violating but parity (P) conserving effects. We calculate the corresponding null-test observable at beam energies 100-1000 MeV within the spin-dependent Glauber theory considering T-violating P-conserving nucleon-nucleon interactions. The S-wave component of the deuteron wave function as well as the D-wave are taken into account and the latter is found to play an important role for the magnitude and the energy dependence of the observable in question. Specifically, with inclusion of the D wave the maximum of the obtained signal is shifted to higher beam energies, i.e. to 700-800 MeV.