搜索结果: 1-15 共查到“理学 D0”相关记录22条 . 查询时间(0.055 秒)
中国科学技术大学近代物理系杨思奇、韩良，在费米实验室D0实验中，完成轻夸克相关弱混合角的世界最精确测量，研究结果发表在Phys. Rev. Lett. 115, 041801(2015)上。自然界存在电磁、强、弱、引力四种基本相互作用。混合角是表征弱作用暨空间反演宇称破缺相对强度的基本物理参数，其数值必须通过以Z0玻色子为媒介的弱中性流宇称破缺实验测定。弱混合角最精确的两个实验观测来自于1980年...
Precision Measurement of CP Violation in D0->pi+pi- at CDF
Precision Measurement CP Violation D0->pi+pi- at CDF
2011/1/4
We report a preliminary measurement of the CP violating asymmetry in D0 →p+p− using approximately 215·000 decays reconstructed in about 5.94 fb−1 of CDF data.
Soft QCD Results from D0
Soft QCD D0
2011/1/5
This note presents some selected results on soft QCD studies done by the D0 collaboration at the Tevatron collider. Results on elastic proton-antiproton cross section, double parton scattering, underl...
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...
Non-leptonic charm decays provide insights into both electro-weak and strong dynamics. This includes the study of long-distance hadronic effects, the approximate symmetries of strong interactions, and...
Study of the D0 --> pi+ pi- pi0 decay at BABAR
Dipartimento di Fisica Sapienza Universit`a di Roma and Istituto Nazionale di Fisica Nucleare
2010/3/15
The Dalitz-plot of the Decay D0 --> pi+ pi- pi0 measured by the BABAR Collaboration shows the structure of a final state having quantum numbers IG JPC = 0- 0--. An isospin analysis of the Daliz-plot f...
We have performed a dynamical calculation of the bound state problem of D0Ｄ*0 by considering the pion and sigma meson exchange potential. Our preliminary analysis disfavors the molecular interpretatio...
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...
A simulation study on the measurement of D0-D0 mixing parameter y at BESⅢ
likelihood electron identification D0-D0 mixing mixing parameter y
2009/8/17
We established a method on measuring the D0-D0 mixing parameter y for BESⅢ experiment at the BEPCⅡ e+e－ collider. In this method, the doubly tagged π(3770) →D0-D0 events, with one D decays to CP-eigen...
Recently, both BaBar and Belle experiments found evidences of neutral D mixing. In this paper, we discuss the sensitivities of the measurements of D mixing parameters at BESⅢ. With CP tag technique at...
We investigate the D0-D0 mixing through the doubly Cabibbo suppressed (DCS) channel D0→f0(980)K*0 and its charge conjugate channel, in which the K*0 meson is reconstructed in both K+π－ and KSπ0 final ...
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...