Elastic pbar-d scattering and total pbar-d cross sections reexamined

TL;DR

This paper reexamines antiproton-deuteron scattering using updated models and partial-wave analysis, providing new predictions for cross sections and spin observables relevant for antiproton polarization experiments.

Contribution

It incorporates recent pbar-p scattering data into Glauber theory to improve predictions of pbar-d scattering observables and polarization buildup efficiency.

Findings

Predictions for differential cross sections and spin observables across 50-300 MeV.

Updated total polarized cross sections using the optical theorem.

Assessment of polarization buildup efficiency in storage rings.

Abstract

We update our recent analysis of pbar-d scattering, performed within the Glauber theory including the single- and double pbar-N scattering mechanisms. Specifically, now we consider also Nbar-N amplitudes from a new partial-wave analysis of pbar-p scattering data. Predictions for differential cross sections and the spin observables A_y^d, A_y^pbar, A_xx, A_yy are presented for antiproton beam energies between 50 and 300 MeV. Total polarized cross sections are calculated utilizing the optical theorem. The efficiency of the polarization buildup for antiprotons in a storage ring is investigated.