J. Robert Wagoner is an American physicist known for his contributions to the field of plasma physics. He has worked extensively on the behavior of plasmas, which are ionized gases that play a crucial role in various applications, including nuclear fusion and space physics. His research has helped advance the understanding of plasma dynamics and its interactions with magnetic fields. In addition to his research, Wagoner has been involved in teaching and mentoring students in the field of physics. He has published numerous papers and has participated in various scientific conferences, sharing his insights and findings with the broader scientific community.