BEGIN:VCALENDAR VERSION:2.0 CALSCALE:GREGORIAN PRODID:UW-Madison-Physics-Events BEGIN:VEVENT SEQUENCE:2 UID:UW-Physics-Event-4733 DTSTART:20180226T213000Z DURATION:PT1H0M0S DTSTAMP:20260415T184049Z LAST-MODIFIED:20180226T140526Z LOCATION:4274 Chamberlin Hall SUMMARY:Understanding CP-Violation in Leptons \, NPAC (Nuclear/Particl e/Astro/Cosmo) Forum\, Daniel Cherdack\, Colorado State University DESCRIPTION:Of the four known fundamental forces the weak force has ma ny unique properties. It is the only standard model force that couples to all known fermions\, that has massive exchange bosons\, and that i nduces particle flavor changes. Even more surprising is that the weak force maximally violates parity symmetry\, and has even been demonstra ted to break charge-parity (CP) symmetry\, meaning the weak force inte racts differently with matter and anti-matter. This last property may hold the key to understanding several fundamental mysteries of the uni verse from the three-generation structure of matter\, to the missing l ink between the big bang and the observed universe.
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\nNeutr inos only interact via the weak force which means they are hard to det ect\, but provide a unique test bed for studying the weak interaction. Over the past few decades it was discovered that neutrinos have mass and change flavors. Studying the way neutrinos change flavors\, terme d neutrino oscillations\, allows us to search for a new source of CP-v iolation. Measuring and understanding the ways neutrinos interact with nuclear matter is key to studiying neutrino oscillations and has prov ed to be more difficult than previously thought. The next-generation D eep Underground Neutrino Experiment (DUNE) will usher in an era of hi gh precision neutrino physics with the worlds most intense neutrino be am and massive high resolution detectors\, increasing the impact of ne utrino interaction measurements. I will discuss the theoretical framew ork we use to describe neutrino oscillations\, as well as the difficu lties in making neutrino interaction measurements and how they can be mitigated moving forward. URL:https://www.physics.wisc.edu/events/?id=4733 END:VEVENT END:VCALENDAR