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Figure 1

Energy loss in the TPC ($\text{d}E/\text{d}x)$of particles with negative charge versus the rigidity estimated atthe TPC inner wall ($p_{\text{TPC}}/|Z|$). The solid lines representthe expected energy loss according to the parameterization of theBethe-Bloch formula. The blue circles and squares are $^{3}\overline{\text{He}}$nuclei and anti-tritons identified by the TPC only, and the orangecrosses and the red diamonds are the anti-tritons and $^{3}\overline{\text{He}}$nuclei, respectively, that were matched to a TOF hit.
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