| イベント名 |
素粒子理論セミナー Bare Higgs mass at Planck scale |
|---|---|
| イベント種類 | セミナー |
| 講演者(講師) | |
| イベント詳細 | 発表者：濱田雄太 (京都大学大学院) In a certain quantum gravity/string theory context, it is possible that not only the physical Higgs mass but also the bare one (and hence the radiative corrections as well) can vanish at the Planck/string scale. We compute one and two loop quadratic divergent contributions to the bare Higgs mass in terms of the bare couplings in the Standard Model (SM). We approximate the bare couplings, defined at the ultraviolet cutoff scale, by the MS ones at the same scale, which are evaluated by the two loop renormalization group equations for the Higgs mass around 126 GeV in the SM. We obtain the cutoff scale dependence of the bare Higgs mass, and examine where it becomes zero. We find that when we take the current central value for the top quark pole mass, 173 GeV, the bare Higgs mass vanishes if the cutoff is about 1023 GeV. With a 1.3 smaller mass, 170 GeV, the scale can be of the order of the Planck scale. |
| 対象 | 教職員向け 在学生向け |
| 使用言語 | |
| キーワード | |
| 開催期間 | 2012年12月14日 15:00 〜 16:30 |
| 会場 |
|
| 定員 | なし |
| 申込み方法 | 事前申込み不要 |
| お問い合わせ先 |
|
内容を編集する場合はこのボタンをクリックしてください。