HMC Physics Colloquium

Tuesdays at 16:30 in Shanahan Center for Teaching and Learning, Room B460

Seyda Ipek

University of California at Irvine

Why Are We Here? Matter-Antimatter Asymmetry Of The Universe

Feb. 19, 2019

Everything around us, cookies, rocks, stars, galaxies, etc. is made up of “matter” and not “antimatter”. We know that if antimatter comes close to matter, they annihilate each other leaving only energy behind. That we are here means there is no antimatter to annihilate with us. But what happened to the antimatter in the Universe? Where did it go? How did it disappear? Why/how did matter stay behind? I will talk about this mystery and possible ways around it which requires new physics beyond the Standard Model of particle physics.