Identified particle transverse momentum distributions upto 12 GeV/c from Au+Au collisions at $\sqrt{s_{_{NN}}} = 200$ GeV

Ultra-relativistic Au+Au collisions at $\sqrt{s_{_{NN}}} = 200$ GeV at RHIC create a hot and dense medium that exhibits novel properties. Study of these properties and hadronization mechanisms of the medium requires identified particle results over wide transverse momentum ($p_T$) range since different mechanisms govern hadron production in different kinematic regions. Particle identification at low, intermediate and high $p_{T}$ is achieved from Time Projection Chamber and Time-of-Flight system at STAR. In this talk, we present the $p_T$ distributions of $\pi^{\pm}$, $p$ and $\bar{p}$, their nuclear modification factors and particle ratios from 200 GeV Au+Au collisions up to 12 GeV/$c$ at mid-rapidity. We discuss the relative baryon enhancement at intermediate $p_{T}$ and the flavor dependence of the energy loss. We also discuss the possible transition between jet dominant fragmentation and quark coalescence at hadronization.