Figure 9

Coalescence parameter ($B_{2}$) of anti-deuteronsin inelastic pp collisions at $\sqrt{s}$ = 7~TeV (circles) comparedwith the values measured at lower energies in pp , $\upgamma$p, ep (squares and hollow circles) andin p--Cu and p--Pb collisions (band at $p_{\text{T}}/A$~=~0~GeV/$c$).
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