Abstract
The combination of the ionization energy loss (dE/dx) from Time Projection Chamber (TPC) at ≃ 8% resolution and multi-gap resistive plate chamber time-of-flight (TOF) at 85ps provides powerful particle identification. We present spectra of identified charged pions from transverse momentum pT≃0.2 GeV/c to 7-8 GeV/c in Au + Au collisions at [Formula: see text]. Physics implications will be discussed.
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