KEK 素粒子原子核研究所・理論セミナー(礒野 裕 氏)

 
分類理論セミナー
開始2019/08/08(木)13:00
終了2019/08/08(木)14:00
会場研究本館3階セミナールーム322
講演タイトルA microscopic model for inflation from supersymmetry breaking
講演者礒野 裕(Department of Physics, Faculty of Science, Chulalongkorn University)
言語英語/English
連絡先横倉諒/ryokokur-AT-post.kek.jp
ウェブサイト
食堂・売店利用予定なし/0

概要

In this talk, I first introduce our recent proposal of a class of small-field inflation models driven by supersymmetry breaking. The inflaton is a superpartner of the goldstino of the supersymmetry breaking, and charged under a gauged U(1) R transformation. The models in this class has a linear superpotential, leading to avoiding the eta problem. Furthermore, the gauged U(1) R invariance makes the pseudo-scalar companion of the inflaton absorbed into the U(1) R gauge field, and also allows for a global minimum with tuneable cosmological constant. I introduce a concrete model in this class as an effective field theory, and propose a generalisation of Fayet-Iliopoulos model in supergravity as a microscopic model leading to this effective theory.

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