BEGIN:VCALENDAR VERSION:2.0 CALSCALE:GREGORIAN PRODID:iCalendar-Ruby BEGIN:VEVENT CATEGORIES:Lectures & Presentations DESCRIPTION:The Physics & Astronomy Colloquium Series presents Zachary Slep ian of The University of Florida\, discussing "Is Nature Its Own Mirror? Pa rity-Violation with Galaxy Quartets in BOSS" on Feb 16.\n\n \n\nAbstract: R ecently we have shown that the galaxy 4-point correlation function\, which measures an excess of quartets of galaxies over random\, is sensitive to pa rity violation in our universe’s large-scale structure. It is fundamentally 3D and thus has a handedness even after averaging over orientations\, in c ontrast to galaxy pair and triplet correlations. With this new observable\, we have detected parity violation at high statistical significance using t he largest currently available sample\, the SDSS Baryon Oscillation Spectro scopic Survey’s roughly 1 M galaxies. If confirmed by upcoming sky surveys such as DESI this would indicate new physics operant in the Universe’s earl iest moments.\n\nIn this talk I will discuss this result and the many syste matics tests performed to test its robustness\, as well as prospects for th e future\, especially with DESI data. DTEND:20240216T220000Z DTSTAMP:20241005T182101Z DTSTART:20240216T211000Z GEO:39.322732;-82.10287 LOCATION:Walter Hall\, 145 SEQUENCE:0 SUMMARY:Physics Colloquium | Is Nature Its Own Mirror? Parity-Violation wit h Galaxy Quartets in BOSS\, Feb 16 UID:tag:localist.com\,2008:EventInstance_45491616064954 URL:https://calendar.ohio.edu/event/physics_colloquium_astro_feb_16 END:VEVENT END:VCALENDAR