BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Kalliopi Petraki (Paris LPTHE and Nikhef\, Amsterdam) DTSTART:20210215T150000Z DTEND:20210215T160000Z DTSTAMP:20260423T003249Z UID:IFTWeb/34 DESCRIPTION:Title: Dark matter goes nuclear: overhauling thermal decoupling at the TeV scale with bound states\nby Kalliopi Petraki (Paris LPTHE and Nikhef\, Amste rdam) as part of IFT-Madrid Webinars\n\n\nAbstract\nThe production of dark matter via thermal decoupling from the primordial plasma\, and the direct \, indirect and collider signals associated with this mechanism\, have bee n the pillars of dark matter phenomenology in the past decades. In sharp c ontrast to the sub-TeV regime\, the interactions of thermal-relic dark mat ter with multi-TeV or larger mass manifest as long-range. This is supporte d by unitarity arguments\, and shown by explicit calculations in WIMP and other models. The long-range nature of the interactions gives rise to non- perturbative effects\, with the most prominent being the existence of boun d states. The formation and decay of unstable bound states in the early un iverse decrease the dark matter density\, thereby changing its predicted m ass and/or couplings. This can have severe implications for all experiment al probes\, particularly for collider and indirect searches.\n LOCATION:https://researchseminars.org/talk/IFTWeb/34/ END:VEVENT END:VCALENDAR