The Dark Side of the Universe: How We Know It’s There and How We Might Find It

Time: July 10th, 2022 14: 00- 15: 30
Speaker: Joshua Armstrong Eby（Kavli IPMU Project Researcher）
Location: Online / Zoom (No recording will be available)
Audience: Junior and senior high school students and older
Capacity: 60
Organizers: Kavli IPMU / Tamarokuto Science Center

Abstract:
Most of the matter (greater than 80%) in the universe is dark, meaning that it interacts very weakly with light and therefore cannot be seen directly with our most powerful telescopes. Therefore, we know very little about what kind of particle might make up this so-called dark matter. So how do we know it is really there, and how can we hope to discover its properties?
In this talk, I will describe some of the strongest lines of evidence for the existence of dark matter, and what this can teach us about our galaxy and the universe more broadly. I will introduce several of the most promising candidate particles for explaining the existence of dark matter, and how they differ in experimental predictions. Along the way, I will describe my own research into dark objects known as boson stars, which can provide new ways of searching for these elusive dark particles in hopes of solving one of the greatest mysteries in physics.

宇宙を構成する物質の実に80%以上が”ダーク（暗黒）”なものであり、その正体は明らかになっていません。 本講演では、暗黒物質が存在すると考えられる証拠と、そこからわかる宇宙の秘密、そして暗黒物質の候補と考えられる幾つかの素粒子についてご紹介します。

※講義は英語で内容は高校生以上を想定
※日本語通訳はありません

Pre-registration: Required by June 27th
Registration Form

Those who are able to participate this event will receive meeting ID, Password and　URL by July 1st via Email.