from    
to    
search  

 


【图书馆系列讲座】个人文献管理方法与工具:以NoteExpress为例
【图书馆系列讲座】PPT的设计制作与科研汇报
【图书馆系列讲座】如何使用Word制作长文档——以学位论文写作为例
【图书馆系列讲座】 如何使用LaTeX排版论文
报告题目:
A New Search on the Neutron Electric Dipole Moment
 报告人:
高海燕(Gao,Haiyan)教授
美国杜克大学物理系,清华大学物理系系友
报告时间:
2006-04-29 15:10
报告地点:
清华大学高研地下报告厅
主办单位:
清华大学物理系
  简介:

Recently, a new experiment was proposed to search for the neutron Electric Dipole Moment (EDM) with an unprecedented sensitivity. The proposed search will have a two orders of magnitude improvement over the current neutron EDM limit. A search for a non-zero value of the neutron EDM is a direct search of the time reversal symmetry (T) violation . Therefore, it provides a unique insight of CP violation because of CPT invariance. The Standard Model (SM) prediction for the neutron EDM is below the current experimental limit by six orders of magnitude. However, many proposed models of electroweak interaction which are extensions beyond the SM predict much larger values of neutron EDM. The new experiment has the potential to reduce the acceptable range of prediction by two orders of magnitude. Furthermore, if new sources of CP violation are present in nature beyond the Cabibbo, Kobayashi and Maskawa (CKM) mechanism in the Standard Model and are relevant to hadronic systems, the new experiment offers a unique opportunity to search for such new physics. The current understanding of the baryogenesis suggests that additional sources of CP violation might exist in nature beyond the Standard Model and beyond what have been observed so far. To explain the baryon number asymmetry in the universe through the grand unified theory of electroweak baryogenesis, substantial New Physics in the CP violation sector is required.

今日相关信息
新型有机光功能材料的尺寸效应研究
Universal scaling behavior of the c-a...
Machine Learning, and the Role of Mac...
从学科交叉看化学学科的发展
热能系学术沙龙之能源动力学科研究人员的职...
 
同类别相关信息
A categorical theory of topological...
Galaxy Properties and Galaxy Enviro...
From dileptons in heavy-ion collisi...
Electron and positron impact ioniza...
Spectral Analysis of Primordial QCD...
学术活动