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Science On Tap - Matter over. Antimatter

Aug 20, 2015 5:30 PM - 7:00 PM
UnQuarked Wine Room
145 Central Park Square, Los Alamos, New Mexico, 87544
Jessica Privette
505 667-0375
Science On Tap

Event Description

Science On Tap happens every third Thursday of the month, featuring a new topic each week. It begins with an informal 15-minute talk and is followed by a lively group discussion.

Matter over Antimatter: From Dirac to Sakharov and Beyond  

Every fundamental particle in nature has a corresponding antiparticle, as first predicted by Paul Dirac in 1928.  When particle and antiparticle meet, they annihilate into a burst of radiation.  Since in the aftermath of the Big Bang, particles and antiparticles were produced in equal numbers. As the primordial soup cooled, they should have wiped each other out leaving behind an empty universe. Fortunately, that's not what happened. An excess of ordinary matter survived over the antimatter from which everything in the universe was formed. 

How did this happen? In 1967 Sakharov identified three key ingredients needed to obtain the lopsided universe we live in.  Today, physicists worldwide search for these ingredients in the properties of elementary particles and nuclei, already probing a number of mechanisms for the generation of the cosmic matter excess. There are exciting prospects for significant progress in the next decade. 

Join us at this Science on Tap where Vincenzo Cirigliano of Los Alamos National Laboratory's Nuclear and Particle Physics, Astrophyics and Cosmology group will discuss "Matter over Antimatter."  It will begin Thursday, August 20, starting at 5:30 PM at the UnQuarked Wine Room at 145 Central Park Square in downtown Los Alamos, New Mexico.

Cirigliano is a Fellow of the American Physical Society and serves on the Institute for Nuclear Theory's National Advisory Committee and on the joint Department of Energy/National Science Foundation's Nuclear Science Advisory Committee.

Science On Tap happens every third Thursday of the month, featuring a new topic each week. Sponsored by the Los Alamos Creative District and hosted by the Bradbury Science Museum, this series begins each evening with an informal 10 to 15-minute lecture followed by a lively group discussion. “On Tap” is a way for people to get out and about in the community, learn something new, and meet people with similar interests. Admission is free and open to the general public.