搜索结果: 1-15 共查到“理学 CP violation”相关记录17条 . 查询时间(0.078 秒)
Leptogenesis in a SUSY SU(5) x T' Model with Geometrical CP Violation
Leptogenesis in a SUSY SU(5) x T' Model with Geometrical CP Violation
2011/10/14
The complex Clebsch-Gordon coefficients in the double tetrahedral group T' offers the possibility that CP violation can be entirely geometrical in origin, as pointed out by us recently. In this note, ...
CP Violation Results from B Decays at BaBar 。
Two flavor QCD involves three independent mass parameters for which non-perturbative effects are not universal. This precludes matching lattice and perturbative results for non-degenerate quarks and e...
Final state interactions and CP violation in B+- --> pi+- pi-+ pi+- decays
Final state interactions CP violation in B+- --> pi+- pi-+ pi+- decays
2011/1/5
We study CP violation and the contribution of the strong pion-pion interactions in the three-body B± →π±π∓π± decays within a quasi two-body QCD factorization approach. The short distance interac...
Two flavor QCD involves three independent mass parameters for which non-perturbative effects are not universal.This precludes matching lattice and perturbative results for non-degenerate quarks and el...
We have searched for CP violation of charmed mesons in the decays D→K0 SP, where D denotes
D0 and D+ (s), and P denotes the pseudo-scalar mesons p+, K+, p 0, h, and h′.
We report on a search for CP violation in the decay D± ! K0 S± using a data set corresponding to an integrated luminosity of 469 fb−1 collected with the BABAR detector at the PEP-II asymmetric ...
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.
se Measurements of Direct CP Violation, CPT Symmetry, and Other Parameters in the Neutral Kaon System
se Measurements of Direct CP Violation, CPT Symmetry Other Parameters Neutral Kaon System
2011/1/4
We present precise tests of CP and CPT symmetry based on the full dataset of K ! ππ decays
collected by the KTeV experiment at Fermi National Accelerator Laboratory during 1996, 1997, and 1999.
How large can the SM contribution to CP violation in $D^0-\bar D^0$ mixing be?
Heavy Quark Expansion Standard Model
2010/3/16
We investigate the maximum size of CP violating effects in $D$-mixing within the Standard Model (SM), using Heavy Quark Expansion (HQE) as theoretical working tool. For this purpose we determine the l...
We report the latest results on CP violation measurements and the tantalizing hints of potential new physics effects obtained at the B factories.
K* resonance effects on direct CP violation in B -> pi pi K
K* resonance effects direct CP B -> pi pi K
2010/3/15
Charged and neutral B decays into two charged pions and a charged or a neutral kaon are analyzed within the QCD factorization scheme where final state interactions before and after hadronization are i...
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...
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...
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...