Post-Cold War Diaspora of Russian Particle Physicists (2512.04052v1)

Abstract: While the migration of scientists from the Soviet Union to the West occurred at a modest pace during the 1970s and 1980s, the dissolution of the USSR in 1991 and the ensuing economic and social hardships precipitated a massive exodus that amounted to a true brain drain. The international physics community, particularly in Europe and the United States, absorbed a substantial influx of specialists in nuclear, high-energy, and accelerator physics, including both seasoned scientists and engineers as well as promising graduate students and postdoctoral fellows. Many of these emigre researchers went on to assume leadership positions, drive major experimental and theoretical initiatives, and achieve scientific distinction that equaled or even surpassed their accomplishments at home. In this article we explore the defining features of this post Cold War scientific diaspora, assess its impact on Russia research infrastructure and capabilities, and evaluate its enduring contributions to global particle physics collaborations and discoveries.