BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-3847
DTSTART:20151027T203000Z
DTEND:20151027T213000Z
DTSTAMP:20260419T110807Z
LAST-MODIFIED:20151026T212059Z
LOCATION:5280 Chamberlin Hall
SUMMARY:Z'-portal for dark mesons in the SIMP scheme\, Theory Seminar 
 (High Energy/Cosmology)\, Min-Seok Seo\, Seoul National University
DESCRIPTION:Recently\, it has been proposed that dark mesons with Wess
 -Zumino-Witten term realizes the SIMP scheme\, in which dark matter re
 lic density is determined by freeze-out of 3 -> 2 self annihilation\, 
 in a natural way. This model can be completed after considering commun
 ication between dark sector and Standard Model sector in order to prev
 ent the dark matter over-heating. In this talk\, kinetic mixing betwee
 n dark U(1) and hypercharge U(1) gauge bosons is suggested as a plausi
 ble interaction satisfying such requirement. Possible ways of assignin
 g U(1) charge are restricted by the presence of Wess-Zumino-Wittern te
 rm\, so more information on dark sector can be extracted. Requirement 
 of sufficient interaction between dark- and Standard Model sector prov
 ides lower bound of the dark photon mass and the magnitude of kinetic 
 mixing.  Several additional issues concerning the model is also visite
 d.
URL:https://www.physics.wisc.edu/events/?id=3847
END:VEVENT
END:VCALENDAR