Measurements of neutral and charged kaon production at high image up to 15 GeV/c at STAR Original Research Article

We report an extension of charged kaon transverse momentum (pT) spectra at mid-rapidity (|y|<0.5) up to 15 GeV/c, neutral kaon pT spectra up to 12 GeV/c using events triggered by the Barrel Electro-Magnetic Calorimeter (BEMC) from p+p collisions at View the MathML source. The K±/π± and K0/π± at high pT are compared in p+p and Au+Au collisions, and nuclear modification factor (RAA) for pion, kaon, proton and rho are discussed. The RAA for kaon in central collisions are consistent with theory calculation having jet conversion in a plasma of quarks and gluons.