English

Null-test signal for T-invariance violation in $pd$ scattering

Nuclear Theory 2016-03-04 v1

Abstract

The integrated proton-deuteron cross section σ~\widetilde\sigma for the case of the incident proton vector polarization pypp_y^p and tensor polarization PxzP_{xz} of the deuteron target provides a null test signal for time-reversal invariance violating but P-parity conserving (TVPC) effects. We study the null-test observable σ~\widetilde\sigma within the Glauber theory of the double-polarized pdpd scattering. Full spin dependence of the ordinary strong pNpN scattering amplitudes and different types of the hypothetical TVPC pN-amplitudes are taken into account. We show that the contribution from the exchange of the lowest-mass meson allowed in the TVPC interaction, i.e. the ρ\rho-meson, to the null-test observable σ~\widetilde\sigma is zero. The axial h1h_1 meson exchange makes a non-zero contribution. We find that inclusion of the Coulomb interaction does not lead to divergence of the cross section σ~\widetilde\sigma and calculate its energy dependence at the proton beam energy 100-1000 MeV.

Keywords

Cite

@article{arxiv.1506.08303,
  title  = {Null-test signal for T-invariance violation in $pd$ scattering},
  author = {Yuriy Uzikov and Azamat Temerbayev},
  journal= {arXiv preprint arXiv:1506.08303},
  year   = {2016}
}

Comments

12 pages, 3 figures, to appear in Phys.Rev.C