Centrality dependence of charged antiparticle to particle ratios near midrapidity in d+Au collisions at sNN=200GeV

Le résumé fourni par la source

The ratios of the yields of charged antiparticles to particles have been obtained for pions, kaons, and protons near midrapidity for $d+\mathrm{Au}$ collisions at $\sqrt{{s}_{NN}}=200\phantom{\rule{0.3em}{0ex}}\mathrm{GeV}$ as a function of centrality. The reported values represent the ratio of the yields averaged over the rapidity range of $0.1<{y}_{\ensuremath{\pi}}<1.3$ and $0<{y}_{K,p}<0.8$, where positive rapidity is in the deuteron direction, and for transverse momenta $0.1<{p}_{T}^{\ensuremath{\pi},K}<1\phantom{\rule{0.3em}{0ex}}\mathrm{GeV}∕c$ and $0.3<{p}_{T}^{p}<1\phantom{\rule{0.3em}{0ex}}\mathrm{GeV}∕c$. Within the uncertainties, a lack of centrality dependence is observed in all three ratios. The data are compared to results from other systems and model calculations.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.