On the direct detection of the QCD axion dark matter
開始日時 | 2022/06/07 11:00 |
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終了日時 | 2022/06/07 12:00 |
講演者 | 福田 朝 助教 ( 東京大学 ) |
会場 | オンライン (Zoom) |
連絡先 | 鈴木 資生 / mtsuzuki-AT-post.kek.jp |
言語 | English |
ウェブサイト |
概要
Because the axion is a pseudo-scalar Boson, as the interaction between axions and matter, spin-dependent interactions have been mainly discussed up to the present.
Spin-independent terms, which break the axion shift symmetry, are considered to be small, being suppressed by the axion mass.
However, we have found that couplings of 4-point interactions between nucleons and axions are not negligibly small.
The term is of particular importance for the axion dark matter, which has a long Compton length, because the scattering amplitude is enhanced by the coherent effect.
We discuss the consequences and the possible application of the interactions.