Speaker
Description
The Electron Ion collider(EIC) will be the ultimate facility to address the internal dynamics played by the quarks and gluons to global phenomenology of the nucleons and nuclei. Particle identification (PID) is crucial for major physics cases to be addressed by the EIC. The collaboration ATHENA has performed a detailed systematic study of the high momentum PID performance in the forward and backward regions using the RICH technology. In the forward region, ATHENA has employed a focusing dual radiator RICH (dRICH) in order to perform pion-kaon separation from few $MeV/c$ to $50~GeV/c$; whereas in the backward region there is a proximity focusing RICH (pfRICH). Contrary to a classical design the 40$~cm$ proximity gap is enhanced with filled $C_4F_{10}$ to use this RICH also in the threshold mode. This enables an electron-pion separation from few $MeV/c$ to $10~GeV/c$.
This contribution will give an overview of the simulation studies of the particle identification performance of both RICHes designed for the proposal of the ATHENA detector. A detailed description of the simulation chain, the models of both RICHes designed for the proposal of the ATHENA spectrometer, their performances, and technological synergies and the future plans will be addressed in this contribution.
