English
Related papers

Related papers: New Viewpoint to the Source of Weak CP Phase

200 papers

Based on the relation between CP-violation phase and the other three mixing angles in Cabibbo-Kobayashi-Maskawa matrix postulated by us before, a new constraint on the parameters of Wolfenstein's parametrization is given. The result is…

High Energy Physics - Phenomenology · Physics 2007-05-23 Yong Liu , Jing-Ling Chen

In this work, the postulation that weak CP phase originates in a certain geometry, is further discussed. According to this postulation, the weak CP phase is determined by three mixing angles. So, if we can determine experimentally three…

High Energy Physics - Phenomenology · Physics 2007-05-23 Yong Liu

The theory of $CP$ violation based on phases in weak couplings in the Cabibbo-Kobayashi-Maskawa (CKM) matrix requires the phase $\gamma \equiv {\rm Arg~} V^*_{ub}$ (in a standard convention) to be nonzero. A measurement of $\gamma$ is…

High Energy Physics - Phenomenology · Physics 2009-09-25 Michael Gronau , Jonathan L. Rosner , David London

We further investigate the probability that, weak CP phase originates in a certain geometry. We find that our postulation on weak CP Phase gives strict constraints on angle gamma in unitarity triangle DB and the element Vtd in…

High Energy Physics - Phenomenology · Physics 2007-05-23 Yong Liu

The latest experimental progress have established three kinds of neutrino oscillations with three mixing angles measured to rather high precision. There is still one parameter, i.e., the CP violating phase, missing in the neutrino mixing…

High Energy Physics - Phenomenology · Physics 2012-06-22 Xinyi Zhang , Bo-Qiang Ma

Recent results obtained from B decays on the phases of weak couplings described by the Cabibbo-Kobayashi-Maskawa (CKM) matrix are discussed, with particular emphasis on $\alpha$ and $\gamma = \pi - \beta - \alpha$.

High Energy Physics - Phenomenology · Physics 2007-05-23 Jonathan L. Rosner

Within a specific texture of the quark mass matrix the notion of a maximal violation of the $CP$ symmetry can be defined. The experimental constraints from weak decays imply that in reality one is close to the case of maximal $CP$…

High Energy Physics - Phenomenology · Physics 2010-11-01 Harald Fritzsch , Zhi-zong Xing

By using the relation between CP-violation phase and the mixing angles in Cabibbo-Kobayashi-Maskawa matrix postulated by us before, the rephasing invariant is recalculated. Furthermore, the problem about maximal CP violation is discussed.…

High Energy Physics - Phenomenology · Physics 2007-05-23 Yong Liu

The currently favored model of CP violation is based on phases in the Cabibbo-Kobayashi-Maskawa (CKM) matrix describing the weak charge-changing couplings of quarks. The present status of parameters of this matrix is described. Tests of the…

High Energy Physics - Phenomenology · Physics 2014-11-17 Jonathan L. Rosner

The maximal CP violation hypothesis depends on the phase convention of the Cabibbo-Kobayashi-Maskawa matrix. A phase convention which leads to successful prediction under the maximal CP violation hypothesis is searched, and thereby,…

High Energy Physics - Phenomenology · Physics 2014-11-18 Yoshio Koide

The phase equivalence of the theoretical quark mixing matrix ${\bf V}^{th}$ derived from the breaking of the flavour permutational symmetry and the phenomenological parametrizations ${\bf V}^{PDG}$ and ${\bf V}^{KM}$ is explicitly…

High Energy Physics - Phenomenology · Physics 2016-09-06 A. Mondragon , E. Rodriguez-Jauregui

In Standard Model, CP violation arises from an irreducible complex phase in the quark mixing matrix, now under the name Cabibbo-Kobayashi-Maskawa matrix. This description has shown remarkably overall agreement with various experimental…

High Energy Physics - Phenomenology · Physics 2014-08-06 Wei Wang

The determination of CP violating phases in the Majorana neutrino mixing matrix using phenomenological constraints from neutrino oscillations, neutrinoless double beta decay, ($\mu^-, e^+$) conversion and few other processes is discussed.…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. K. Samal

CP invariance condition and rephasing invariance in KM scheme of CP violation is discussed. The CP violation measures in B physics, corresponding to the three angles of unitarity triangle are given in rephasing invariant form. With the…

High Energy Physics - Phenomenology · Physics 2007-05-23 T. Kurimoto

We review the historical developments leading to the Cabibbo-Kobayashi-Maskawa (CKM) quark mixing matrix. Present status of the CKM matrix from direct measurements is summarized, giving also the present profile of the unitarity triangle. CP…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Ali , B. Kayser

If CP violation in the decays of neutral kaons is due to phases in the weak couplings of quarks, as encoded in the Cabibbo-Kobayashi-Maskawa (CKM) matrix, there are many other experimental consequences. Notable among these are CP-violating…

High Energy Physics - Phenomenology · Physics 2009-09-25 J. Rosner

A possible supplementary mechanism of CP-violation to the Kobayashi-Maskawa theory is considered in the context of dynamical symmetry breaking.

High Energy Physics - Phenomenology · Physics 2008-01-31 Tadafumi Ohsaku

The experimental status of the Cabibbo-Kobayashi-Maskawa matrix is reviewed. Measurements discussed include B0_(s)-\bar{B}0_(s) mixing and several rare B and K decays with implications for |V_td| and |V_ts|. Extraction of |V_cb| and |V_ub|…

High Energy Physics - Experiment · Physics 2007-05-23 L. Gibbons

We analyse the present experimental evidence for a complex CKM matrix, even allowing for New Physics contributions to $\epsilon_{K}$, $a_{J/\Psi K_{S}}$%, $\Delta M_{B_{d}}$, $\Delta M_{B_{s}}$, and the $\Delta I=1/2$ piece of $% B\to \rho…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. J. Botella

We review the present status of the Standard Model of CP violation, which is based on a complex phase in the Cabibbo-Kobayashi- Maskawa (CKM) matrix. So far CP violation has been observed only in $K^0-\Kbar$ mixing, consistent with a…

High Energy Physics - Phenomenology · Physics 2010-11-01 Michael Gronau
‹ Prev 1 2 3 10 Next ›