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Observation of Time-Reversal Violation in the B^{0} Meson System

This paper presented the world’s first direct measurement of time asymmetry. We used ten years of collected data to make a measurement which is robust to 1 in 10 tredecillion (14-sigma level) of certainty.

The Electromagnetic Calorimeter was a critical device for event tagging and particle identification which we designed, built and calibrated. The huge data set distributed across the world required a novel computing infrastructure to analysis the data. We lead the development and efficient operation of the computing system. This seminal paper was built on novel detector instrumentation and computing engineering structures which we lead and developed.