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Roberto Peccei

Roberto Peccei
The Matter-antimatter Asymmetry of the Universe

Thursday, April 11, 2013
Lecture - 4:00 p.m.
Physics and Astronomy Building
Auditorium - Room 1425
Reception to follow - 3rd Floor Patio

Antimatter, which was first found in cosmic ray tracks, was predicted theoretically by combining relativity with quantum mechanics. Although antimatter is now routinely produced in accelerators and is the basis for PET scanning, it seems to play a minor role in the Universe. Indeed, a matter-antimatter symmetric Universe is at variance with observation, suggesting that there must have been an epoch in the Universe’s history when a primordial matter-antimatter asymmetry was created. This asymmetry is key to our own existence, but its origin is still hotly debated. In this talk, Peccei will explore some of the deep ideas put forth to explain the origin of the matter-antimatter asymmetry of the Universe, and the new physics they require.

Roberto D. Peccei is former Dean of the UCLA Division of Physical Sciences, former Vice Chancellor for Research, and the recipient of the 2013 J.J. Sakurai Prize for Theoretical Particle Physics. Peccei first came to UCLA in 1989 as a professor of physics. As a physicist, his principal research interest is the interface between particle physics and cosmology. He is also serves on the Executive Committee of the Club of Rome, a prestigious global think tank. In this capacity, he is broadly interested in the kind of economics necessary to ensure a sustainable world.

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