James Watson Cronin
Born	29 September 1931 (1931-09-29) (age 76) Chicago, Illinois, USA
Nationality	United States
Fields	Physics
Institutions	University of Chicago
Alma mater	Southern Methodist University
Known for	Nuclear physics
Notable awards	Nobel Prize in Physics

James Watson Cronin (born September 29, 1931) is an American nuclear physicist. Events 522 BC - Darius I of Persia kills the Magian usurper Gaumâta securing his hold as king of the Persian Empire. Year 1931 ( MCMXXXI) was a Common year starting on Thursday (link will display full 1931 calendar of the Gregorian calendar. Chicago (ʃɪˈkɑːgoʊ is the largest City by population in the state of Illinois and the American Midwest of the United States. The United States of America —commonly referred to as the The United States of America —commonly referred to as the Physics (Greek Physis - φύσις in everyday terms is the Science of Matter and its motion. The University of Chicago is a Private university located principally in the Hyde Park neighborhood of Chicago. Alma mater is Latin for "nourishing mother" It was used in Ancient Rome as a title for the mother Goddess, and in Medieval Southern Methodist University ("SMU" is a private, Coeducational University in University Park, Texas (an enclave Nuclear physics is the field of Physics that studies the building blocks and interactions of Atomic nuclei. The Nobel Prize in Physics (Nobelpriset i fysik is awarded once a year by the Royal Swedish Academy of Sciences. Events 522 BC - Darius I of Persia kills the Magian usurper Gaumâta securing his hold as king of the Persian Empire. Year 1931 ( MCMXXXI) was a Common year starting on Thursday (link will display full 1931 calendar of the Gregorian calendar. The United States of America —commonly referred to as the Nuclear physics is the field of Physics that studies the building blocks and interactions of Atomic nuclei.

Cronin was born in Chicago, Illinois and attended Southern Methodist University in Dallas, Texas. Chicago (ʃɪˈkɑːgoʊ is the largest City by population in the state of Illinois and the American Midwest of the United States. Southern Methodist University ("SMU" is a private, Coeducational University in University Park, Texas (an enclave Cronin and co-researcher Val Logsdon Fitch were awarded the 1980 Nobel Prize in Physics for a 1964 experiment that proved that certain subatomic reactions do not adhere to fundamental symmetry principles. Val Logsdon Fitch (born March 10, 1923, Merriman, Nebraska, USA) is an American nuclear physicist. The Nobel Prize in Physics (Nobelpriset i fysik is awarded once a year by the Royal Swedish Academy of Sciences. Specifically, they proved, by examining the decay of kaons, that a reaction run in reverse does not merely retrace the path of the original reaction, which showed that the interactions of subatomic particles are not indifferent to time. In Particle physics, a kaon (/ˈkeɪɒn/ also called K-meson and denoted) is any one of a group of four Mesons distinguished by the fact that they Thus the phenomenon of CP violation was discovered. In Particle physics, CP violation is a violation of the postulated CP symmetry of the laws of physics

Cronin is Professor Emeritus at the University of Chicago and a spokesperson for the Auger project. The meaning of the word professor ( Latin: professor, person who professes to be an expert in some art or science teacher of highest rank) varies Emeritus (ɨˈmɛrɨtəs is an Adjective that is used in the title of a retired Professor, Bishop or other professional The University of Chicago is a Private university located principally in the Hyde Park neighborhood of Chicago. Pierre Auger Observatory is an international Cosmic ray observatory designed to detect ultra high energy cosmic rays -- Ultra-high-energy particles These are sub-atomic Cronin is a member of the Board of Sponsors of The Bulletin of the Atomic Scientists

External links

• Cronin's Nobel lecture on CP Symmetry Violation
• James Watson Cronin at Nobel-winners.com
• James Cronin at nobelprize.org
• the discovery of violations of fundamental symmetry principles in the decay of neutral K-mesons.
• Short biography at the University of Chicago