Z′和τ的轻子味破坏衰变

来源 :高能物理与核物理 | 被引量 : 0次 | 上传用户:shashh
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
许多超出标准模型的新物理预言了非普适规范玻色子Z′的存在. 此新粒子可产生许多新的物理现象. 本文计算了顶色辅助的人工色(TC2)模型和味普适TC2模型预言的非普适规范玻色子Z′对τ的轻子味破坏衰变过程τ→liγ,τ→liljlk的贡献. 结果表明,在整个参数空间内,过程τ→liljlk的分支比比τ→liγ的分支比大. 在适当的参数空间内,分支比Br(τ→liljlk)可达到10-8. 因此,在将来的高能实验中有可能探测到此新物理效应.
其他文献
Video is a valuable and possibly underused classroom tool,, yet the function of video in ESL is evident and justifiable, helping to strengthen the listening and
建立了缔合体系相平衡模型,并对含缔合组分汽相焓进行了校正,液相用NRTL、Wilson方程修正其非理想性计算出的汽液相平衡数据及焓值,用于缔合体系多股进料精馏模拟取得了满意
瓮交县猴场八一小学创办于1918年,地处瓮安县东北部的:挚塘镇,距县城19公里,学校现有教师85人,学生1735人,校园占地19888平办米。那里风景优美、人杰地灵,彪炳史册的“猴场会议”在
The Weyl transform on the admissible wavelet space is defined, which is associated with the dilation and translation. And the criteria of its boundedness and co
The soft X-ray interferometry is completed by the Mach-Zehnder interferometer using a soft X-ray laser, and it is also an important method to measure the electr
The Mo(Ⅴ) and W(Ⅵ) complexes of (NH3CH2- CH2NH2)3[Mo(Ⅴ)O2(OC6H4O)2] (1), (NH3CH2CH2NH2)2.5 [Mo(Ⅴ) 0.5W(Ⅵ)0.5O2(OC6H4O)2] (2) and (NH3CH2CH2NH2)2- [W(Ⅵ)O2(
To explore the relationship between senescent pulmonary microvascular endothelial cells (PMVECs) induced by D-galactose (D-gal) and apoptosis, PMVECs were cultu
介绍了使用自制的材料制作的大面积阻性板探测器模型的结构和利用宇宙射线测量的效率曲线、单计数率曲线、暗电流曲线、多重计数和信号幅度随高压的变化曲线. 结果表明,该RPC
文中介绍了闪烁光纤发光时间常数的测量方法及测量系统本身时间分辨的校正方法,并对两种塑料闪烁光纤的时间特性进行了测量.
This report reviews the development of the theoretical framework for exergoeconomics, and proposes a time and space-dependent exergy cost transfer equation. The