搜索结果: 1-9 共查到“高能物理学 D0”相关记录9条 . 查询时间(0.055 秒)
D0-D0 mixing and other charm decays at Belle
D0-D0 mixing CP violation charm decays CP eigenstates
2010/5/7
The D0-D0 mixing at Belle in different modes with corresponding methods is reported in this paper, there is a clear evidence for non-zero y D0 mixing parameter, and the measurement of D0 mixing parame...
We summarize and combine direct measurements of the width of theW boson
in data collected by the Tevatron experiments CDF and D0 at Fermilab.
Results from CDF and D0 Run-I (1992-1995) have been comb...
b-Jet Identification in the D0 Experiment
b-jet identification b-tagging D0 Tevatron Collider
2010/3/15
Algorithms distinguishing jets originating from b quarks from other jet flavors are important tools in the physics program of the D0 experiment at the Fermilab Tevatron p-pbar collider. This article d...
Search for a Low Mass Standard Model Higgs Boson at D0 in ppbar Collisions at $\sqrt{s}=1.96 TeV$
Low Mass Standard Model $\sqrt{s}=1.96 TeV$ center-of-mass energy
2010/3/15
We present combined searches for the Low Mass Standard Model Higgs boson at a center-of-mass energy of $\sqrt{s}=$1.96 TeV, using up to 5 fb$^{-1}$ of data collected with the D0 detector at the Fermil...
I give a brief overview of D0-D0 mixing and CP violation in the framework of the standard model. I focus on the theoretical estimate of the D0-D0 mixing parameters and the phenomenological description...
Measurements of D0-D0 mixing and searches for CP violation: HFAG combination of all data
mixing CP violation
2009/8/14
We present world average values for D0-D0 mixing parameters x and y, CP violation parameters |q/p| and Arg(q/p), and strong phase differences δ and δKππ. These values are calculated by the Heavy Flavo...
在ψ(3770)处, D0→K－π+是研究D0-D0混合的非常理想的衰变道. 实验上, 良好K/π识别技术将对寻找D0-D0混合过程起着决定性的作用. 在BESⅢ实验的物理预研究中, 发现利用飞行时间的信息, 能够精确测定末态中含有多条带电径迹事例的起始时间, 从而可以改善飞行时间计数器的时间分辨率. 进一步的研究表明, 应用该方法后, BESⅢ双层TOF的时间分辨率从～78ps降到～64ps....
用联合D0和D+单双标记测定分支比的方法
北京谱仪(BES) 北京正负电子对撞机(BEPC) D介子 单标记 双标记 单举衰变 分支比
2008/1/26
报道了用“联合D0和D+单双标记”测定衰变分支比的方法.基于北京谱仪(BES)在北京正负电子对撞机(BEPC)质心系能量s=4.03GeV处获取的数据,利用联合D0和D+单双标记的方法,可以测定D0和D+介子单举和遍举衰变分支比.作为该方法的应用举例,利用BES实验组发表的数据,在90%置信度的情况下,测得D+→e+ν衰变过程分支比的上限为Br(D+→e+ν)<1.6%.此上限值与BES曾发表的结...