OVERVIEW

ALICE (A Large Ion Collider Experiment) is a major experimental facility at the CERN Large Hadron Collider (LHC). ALICE-USA is a group of US laboratories and universities within the large, international ALICE collaboration. All institutions within ALICE-USA are members of the ALICE collaboration and participate in the ALICE scientific program. The purpose of the ALICE-USA Collaboration is to focus and organize US research efforts in the ALICE experimental program at the LHC, and to facilitate proposals and construction of major experimental equipment. ALICE-USA started with the large area Electromagnetic Calorimeter (EMCal; installed in 2011), and results of the EMCal performance during Run 1 and 2 can be found here. The ALICE-USA Central Barrel Upgrades (BTU) project for ALICE has recently been completed, and plays a central part in Run 3 (2022) data taking and beyond. ALICE-USA is also a leading contributor to the ALICE Forward Calorimeter (FoCal), which is due to start taking data in Run 4 (2029). Finally, ALICE-USA plays a key role in non-detector components such as computer processor farms, controls systems, and software, in order to advance the scientific objectives and to maximize US involvement and impact in the LHC heavy-ion program.