  The Advanced Accelerator Concepts (AAC) Seminar Series 2020
(https://aacseminarseries.lbl.gov/), organized and hosted by the Lawrence
Berkeley National Laboratory, consisted of nine weekly sessions, each one
dedicated to a particular topic of interest within the framework of advanced
accelerator concepts research. The Seminar Series was a fully-remote event that
provided a forum for the advanced accelerator community. The AAC Seminar Series
was held in lieu of the AAC 2020 Workshop (https://aac2020.lbl.gov/),
originally planned for June 2020 and canceled due to the COVID-19 pandemic.
Since its inception in 1982, the biennial AAC Workshop has become the principal
US and international meeting for advanced particle accelerator research and
development.
