from    
to    
search  

 


物理系colloquium: Discovery of high-Tc superconductivity in a nickelateunder ...
科技伦理医学专题培训
卫健学术沙龙:印度老年妇女的虐待和忽视——一项整合性综述研究
第474期“工物学术论坛”:The Interaction Laser-Electron group and the ThomX p...
报告题目:
Constraining and detecting sub-keV dark photon
 报告人:
Haipeng An
报告时间:
2014-03-27 15:00
报告地点:
理科楼三楼报告厅
主办单位:
物理系
  简介:

 I will talk about the stellar production of vector states V within the minimal model of "darkphotons". I will show that when the Stuckelberg mass of the dark vector becomes smaller than plasma frequency, the emission rate is dominated by the production of the longitudinal modes of V, and scales as \kappa^2 m_V^2, where \kappa and m_V are the mixing angle with the photon and the mass of the dark state. This is in contrast with earlier erroneous claims in the literature that the emission rate decouples as the forth power of the mass. We find that stellar bounds for m_V < 10 eV are significantly strengthened, to the extent that all current "light-shining-through-wall" experiments find themselves within deeply excluded regions. I will also talk about better ways to detect the eV and sub-eV scale solar "dark photon" using dark matter detectors. 

个人简介:

Undergraduate: Peking University 2002-2006
PhD: University of Maryland 2006-2011, advisor: Xiangdong Ji
Postdoc: Perimeter Institute 2011-Now
今日相关信息
Optical Multi-Dimensional Coherent Sp...
Web of Science 核心数据库的检索与利用
 
同类别相关信息
名师微沙龙:文科PI系列第一场
The Hidden Baryons of the Milky Way
Electromagnetically induced transpa...
Majorana fermions and half-integer ...
清华大学“科学之美”讲坛首场报告---...
学术活动