Antideuteron-to-deuteron ratio ($\overline{\text{d}}/\text{d}$)as a function of $p_{\text{T}}$ per nucleon in pp collisions comparedwith the $(\overline{\text{p}}/\text{p})^{2}$ ratio (squares) atmid-rapidity ($|y|< 0.5$) . Boxes representthe systematic uncertainties and error bars in the $(\overline{\text{p}}/\text{p})^{2}$ ratiosare statistical and systematic uncertainties added in quadrature.