Abstract
We present recent results from Al(beam)+Au(target) collisions at sNN=4.9GeV and Au+Au collisions at sNN=4.5GeV from the STAR fixed-target (FXT) program. We report transverse mass spectra of protons, KS0 and Λ, rapidity density distributions of π±, KS0 and Λ, directed flow of protons, π±, KS0 and Λ, and elliptic flow of protons and π±. These are the first measurements of pion directed and elliptic flow in this energy region. Pion and proton elliptic flow show mass ordering. Measurements are compared with published results from AGS and RHIC. These results demonstrate that the STAR detector performs well in the FXT configuration.
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