KEK 素粒子原子核研究所・理論セミナー(Tobias Binder 氏)

カテゴリ理論セミナー
開始2020/04/28(火)11:00
終了2020/04/28(火)12:00
会場オンライン(Zoom)
講演タイトルProgress in understanding dark matter Sommerfeld-enhanced annihilation, bound-state formation and decay in the early Universe
講演者Tobias Binder /東京大学 IPMU
言語英語/English
連絡先千草颯/schigusa-AT-post.kek.jp
ウェブサイト
食堂・売店利用予定なし/0

概要

If DM is realized at around the TeV-mass region or above, even the heaviest electroweak force carriers could act as long-range forces, leading to the existence of meta-stable DM bound states. The formation and subsequent decay of the latter further deplete the relic density during the freeze-out process on top of the Sommerfeld enhancement, allowing for larger DM masses. In this talk, I discuss how a dense and hot primordial plasma environment influences these quantum mechanical effects, leading to a more complete description and more precise prediction of the thermal WIMP relic abundance.

TOP