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arXiv · 1912.05243

The STAR Event Plane Detector

Joseph Adams·Annika Ewigleben·Sierra Garrett·Wanbing He·Te-Chuan Huang·Peter M. Jacobs·Xinyue Ju·Michael A. Lisa·Michael Lomnitz·Robert Pak·Rosi Reed·Alexander Schmah·Prashanth Shanmuganathan·Ming Shao·Xu Sun·Isaac Upsal·Gerard Visser·Jinlong Zhang
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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.

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Joseph Adams, Annika Ewigleben, Sierra Garrett, Wanbing He, Te-Chuan Huang, Peter M. Jacobs, Xinyue Ju, Michael A. Lisa, Michael Lomnitz, Robert Pak, Rosi Reed, Alexander Schmah, Prashanth Shanmuganathan, Ming Shao, Xu Sun, Isaac Upsal, Gerard Visser, Jinlong Zhang. 2019-12-11. The STAR Event Plane Detector. https://doi.org/10.1016/j.nima.2020.163970

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