理論セミナー

日時: 2013-05-21 11:00 - 12:00
場所: 研究本館1階会議室1
会議名: Z'-ino driven electroweak baryogenesis
連絡先: 桧垣 徹太郎、thigaki-AT-post.kek.jp
講演者: 瀬名波 栄問 氏  (名古屋大学)
講演言語: 英語
アブストラクト: In this talk, feasibility of electroweak baryogenesis in the U(1)-prime extended MSSM (UMSSM) is examined in light of the recently observed 126 GeV Higgs boson. I will begin with a pedagogical review of electroweak baryogenesis. Then I will discuss a baryon number preservation criterion focusing especially on a sphaleron energy, and study strength of the 1st-order electroweak phase transition. Then I will estimate the baryon number density in a specific scenario in which Z'-ino plays an essential role. Finally, I will give a brief summary and outlook.

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