The STAR event plane detector.

Authors :: Adams, J.
Ewigleben, A.
Garrett, S.
He, W.
Huang, T.
Jacobs, P.M.
Ju, X.
Lisa, M.A.
Lomnitz, M.
Pak, R.
Reed, R.
Schmah, A.
Shanmuganathan, P.
Shao, M.
Sun, X.
Upsal, I.
Visser, G.
Zhang, J.
Source :: Nuclear Instruments & Methods in Physics Research Section A. Jul2020, Vol. 968, pN.PAG-N.PAG. 1p.
Publication Year :: 2020
Abstract: The Event Plane Detector (EPD) is an upgrade detector to the STAR experiment at RHIC, designed to measure the pattern of forward-going charged particles emitted in a high-energy collision between heavy nuclei. It consists of two highly-segmented disks of 1.2-cm-thick scintillator embedded with wavelength-shifting fiber, coupled to silicon photomultipliers and custom electronics. We describe the general design of the device, its construction, and performance on the bench and in the experiment. [ABSTRACT FROM AUTHOR]