Development of a Silicon Vertex and Tracking Detector for the Electron-Ion Collider

The Electron-Ion Collider being built at the Brookhaven National Laboratory will further the study of Quantum Chromodynamics via a rich science programme enabled by high luminosity, high energy collisions of electrons with protons and ions. The ePIC detector is being developed to be the first EIC experiment, ready for data taking in the early/mid 2030s. The innermost element of the ePIC detector is a high resolution Silicon Vertex Tracker able to provide precise measurements of primary and secondary vertices and of particles momentum. This paper will present the ePIC Silicon Vertex Tracker geometry and its performance evaluated in simulations, and will give a brief overview of the ongoing R&D towards high granularity and ultra thin detector layers.