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Fizz Seminar Series

posted Oct 16, 2011, 8:45 PM by President UBCFizz
Next Seminars:

50+ years from Integrated Circuits to Systems of Systems on Chip: How did and will IC Test Technology keep up? PART 2

Date: Wednesday, October 19, 5PM
Location: TBA
Speaker: Dr. Andre Ivanov (UBC EECE)
Abstract: This presentation will highlight 50+ years of technology development and breakthroughs  pertaining to the test and design for
test of ICs, Systems on a Chip (SoCs) and Systems of SoCs.  Some highlights of the major challenges faced by the research communities and
by the industry will be presented.  Highlights of emerging trends and solutions will also be presented.

"Something's the Matter with Anti-Matter: Charge-Parity Violation and the Babar Experiment"
Date: Wednesday, October 26, 5PM
Location: Hebb 10
Speaker: Dr. Janis McKenna (UBC PHAS)
Abstract: About 13.7 billion years ago,  our  Universe  was born in a Big Bang.  That early universe was a big steaming stew of radiation and exactly equal numbers of particles and antiparticles. But somehow, a symmetry was broken, and a lopsided-ness arose, leaving a very small excess of matter over antimatter. And by the time the universe was less than a  second old, essentially all the antimatter had  annihilated with matter in  bursts of light/energy, leaving a small residual excess of matter -  which is all the matter we see in our universe; the matter we're all made of.

Understanding Charge-Parity (CP) violation and its origins is a key  element in understanding this matter-antimatter asymmetry.   The Standard Model of Particle Physics has been a triumph of particle physics - but it has a shortcoming: it accommodates  CP violation, but at a level orders of magnitude too small to explain the matter-antimatter asymmetry of our  universe.

Charge Parity  violation,  was first observed 47 years ago in the neutral kaon system, and in 2001 using  the BaBar Experiment at the Stanford Linear Accelerator Center, we were the  first to observe CP violation in another system: the B meson system.  

In the 1970's  three theoreticians proposed a model to  explain how the universe is dominantly  matter and not anti-matter, but it was not until recently that our group and another finally confirmed their  theory, earning them their 2009  Nobel Prize. (we earned a mention in their Nobel citation!)

I'll review our 15 year experimental program,  studying the decays of hundreds of millions of B mesons, examining CP violation  and testing the  Standard Model of Particle Physics to great precision.   An overview of the experiment and results will be presented.