Ikaros Bigi, a professor of physics at the University of Notre Dame, is a co-recipient of the American Physical Society’s (APS) 2004 J.J. Sakurai Prize in theoretical particle physics. He will share the $5,000 prize with Anthony Ichiro Sanda of Nagoya University in Japan.p. The APS awards the Sakurai Prize annually to recognize and encourage outstanding achievement in particle theory.p. Bigi’s award citation recognizes his “pioneering theoretical insights that pointed the way to a very fruitful experimental study of CP violation in B decays, and for continuing contributions to CP and heavy flavor physics.”p. Bigi’s research is directed mainly toward developing theoretical ideas that will suggest novel methods for uncovering new physics beyond the standard model of high energy physics.p. A member of the Notre Dame faculty since 1988, Bigi received his master’s and doctoral degree from the Max-Planck Institute.p. The J.J. Sakurai Prize was endowed in 1984 by the family and friends of Jun John Sakurai as a memorial and in recognition of the accomplishments of the renowned theoretical physicist. His theories encouraged particle physicists to examine major ideas in diverse ways and to seek out new theories that crossed distinct genres of physics research.p. APS, which has more than 40,000 members, publishes the world’s most prestigious and widely read physics research journals. It also recognizes professional accomplishment with a spectrum of prizes, awards and the election of APS fellows.p.