9月22日（金）、Miguel Vanvlasselaer氏 (Brussels U., IIHE)による宇宙創成物理学国際共同大学院（GP-PU）セミナー「First order phase transitions in the early universe and cosmological consequences」を開催いたします。

■日　　時
2023年9月22日（金）10:00-12:00

■セミナー題目
"First order phase transitions in the early universe and cosmological consequences"
by Miguel Vanvlasselaer (Brussels U., IIHE)

■開催形式
対面×オンライン（Zoom）併用
[対面会場] 理学研究科合同B棟743号室 （キャンパスマップ「H-03」の建物です。）

■参加登録
参加者は事前に下記URLで参加登録が必要です
https://us02web.zoom.us/meeting/register/tZ0lc-CqpzwtGtA_oCwUfyFIEP1-gheYc7Hk

■概要
We know very little about the first few seconds of the universe, beyond the very successful Big Bang nucleosynthesis. In those first instants, First Order phase transitions in the early plasma could have taken place and reshape the content of the plasma and spacetime. In this talk, we will explore the different consequences of such a strong first order phase transition. We will see that it can lead to particle production, possibly Dark Matter, to baryogenesis and, perhaps more importantly, to the generation of observable stochastic background of gravitational waves.

■Point
GPPU 1

■お問合せ
物理学専攻（GP-PU）　古城　徹　
E-mail: toru.kojo.b1[at]tohoku.ac.jp
（[at]を@に置き換えてください）