Theory Seminar (High Energy/Cosmology) |
Events During the Week of October 25th through November 1st, 2015
Monday, October 26th, 2015
- No events scheduled
Tuesday, October 27th, 2015
- Z'-portal for dark mesons in the SIMP scheme
- Time: 3:30 pm - 4:30 pm
- Place: 5280 Chamberlin Hall
- Speaker: Min-Seok Seo, Seoul National University
- Abstract: Recently, it has been proposed that dark mesons with Wess-Zumino-Witten term realizes the SIMP scheme, in which dark matter relic density is determined by freeze-out of 3 -> 2 self annihilation, in a natural way. This model can be completed after considering communication between dark sector and Standard Model sector in order to prevent the dark matter over-heating. In this talk, kinetic mixing between dark U(1) and hypercharge U(1) gauge bosons is suggested as a plausible interaction satisfying such requirement. Possible ways of assigning U(1) charge are restricted by the presence of Wess-Zumino-Wittern term, so more information on dark sector can be extracted. Requirement of sufficient interaction between dark- and Standard Model sector provides lower bound of the dark photon mass and the magnitude of kinetic mixing. Several additional issues concerning the model is also visited.
- Host: Amol Upadhye
Wednesday, October 28th, 2015
- No events scheduled
Thursday, October 29th, 2015
- No events scheduled
Friday, October 30th, 2015
- No events scheduled