搜索结果: 1-15 共查到“理学 D0”相关记录22条 . 查询时间(0.078 秒)
中国科学技术大学近代物理系D0课题组在基本物理参数实验测量方面做出重要成果（图）
中国科学技术大学近代物理系 D0课题组 基本物理参数实验测量
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2015/8/4
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
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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
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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
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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...
Combination of CDF and D0 Results on the Width of the W boson
W boson CDF and D0 Results
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2010/3/16
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
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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
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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 D0, D+, and Ds Branching Fractions
Non-leptonic D0 D+ Ds Branching Fractions
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2010/3/15
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
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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...
X(3872) and Bound State Problem of D0Ｄ*0(Ｄ0 D*0)
X(3872) bound state molecule
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2009/10/29
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...
An overview of D0-D0 mixing and CP violation
D0-D0 mixing CP violation
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2009/8/17
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
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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...
D0-D0 mixing and CP violation at BES-Ⅲ
D mixing BESⅢ experiment CP violation rare decay
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2009/8/17
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...
Measuring D0-D0 mixing in D→f0(980) K* and more
D0-D0 mixing D0→f0(980)K* decay
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2009/8/14
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
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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...