Absence of Suppression in Particle Production at Large Transverse Momentum in $\sqrt{s_{NN}}=200\mathrm{G}\mathrm{e}\mathrm{V}$ $d+\mathrm{A}\mathrm{u}$ Collisions

Transverse momentum spectra of charged hadrons with $p_T<8\mathrm{G}\mathrm{e}\mathrm{V}/c$ and neutral pions with $p_T<10\mathrm{G}\mathrm{e}\mathrm{V}/c$ have been measured at midrapidity by the PHENIX experiment at BNL RHIC in $d+\mathrm{A}\mathrm{u}$ collisions at $\sqrt{s_{NN}}=200\mathrm{G}\mathrm{e}\mathrm{V}$. The measured yields are compared to those in $p+p$ collisions at the same $\sqrt{s_{NN}}$ scaled up by the number of underlying nucleon-nucleon collisions in $d+\mathrm{A}\mathrm{u}$. The yield ratio does not show the suppression observed in central $\mathrm{A}\mathrm{u}+\mathrm{A}\mathrm{u}$ collisions at RHIC. Instead, there is a small enhancement in the yield of high momentum particles.