QED contribution to lepton anomalous magnetic moment
| Project/Area Number |
19540322
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
|
|---|
| Research Institution | The Institute of Physical and Chemical Research |
|---|
Principal Investigator |
NIO Makiko The Institute of Physical and Chemical Research, 川合理論物理学研究室, 仁科センター研究員 (80283927)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
HAYAKAWA Masashi 名古屋大学, 基礎理論研究センター, 准教授 (20270556)
AOYAMA Tatsumi 名古屋大学, 基礎理論研究センター, 准教授 (30391840)
|
|---|
| Research Collaborator |
KINOSHITA Toichiro コーネル大学, 素粒子物理学研究所, ゴールドウィンスミス名誉教授
|
|---|
| Project Period (FY) |
2007 – 2010
|
| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2007: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
|
|---|
| Keywords | 電子 / ミュー粒子 / 異常磁気能率 / 量子電気力学 / 微細構造定数 / 摂動計算 |
|---|
| Research Abstract |
The QED contributions to the anomalous magnetic moments of the electron and muon have been calculated by using perturbation theory. We were able to obtain the results promptly, because we automated program cording and performed large-scale numerical calculation to evaluate the resultant programs. Then the eighth-order contribution to the electron anomaly was renewed. By using the new theory formula, the fine-structure constant, which is a fundamental constant of electro-magnetic force, was precisely determined. Furthermore, we determined the contribution from the tenth-order perturbation, although it is preliminary.
|
Report
(6 results)
Research Products
(45 results)
