Search for time-reversal-invariance violation in double polarized antiproton-deuteron scattering

TL;DR

This paper investigates the potential for detecting time-reversal-invariance violation in antiproton-deuteron scattering with specific polarization configurations, using a theoretical model across 50-300 MeV energies.

Contribution

It introduces a null-test method for T-violation in antiproton-deuteron scattering and analyzes its energy dependence using spin-dependent Glauber theory.

Findings

Null-test signal depends on beam energy and polarization states.

Theoretical predictions suggest measurable T-violation effects within the studied energy range.

Provides a framework for future experimental searches for T-violation in antiproton interactions.

Abstract

Apart from the $pd$ reaction also the scattering of antiprotons with transversal polarization $p_y^p$ on deuterons with tensor polarization $P_{xz}$ provides a null-test signal for time-reversal-invariance violating but parity conserving effects. Assuming that the time-reversal-invariance violating $\bar NN$ interaction contains the same operator structure as the $NN$ interaction, we discuss the energy dependence of the null-test signal in $\bar pd$ scattering on the basis of a calculation within the spin-dependent Glauber theory at beam energies of 50-300 MeV.