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相关论文: Possible Effects of $D^0-\bar{D}^0$ Mixing in Weak…

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D^0-\bar{D}^0 mixing at the detectable level or significant CP violation in the charm system may strongly signify the existence of new physics. In view of the large discovery potential associated with the fixed target experiments, the…

高能物理 - 唯象学 · 物理学 2009-10-28 Zhi-zhong Xing

The noteworthy BaBar and Belle evidence for $D^0$-$\bar{D}^0$ mixing motivates us to study its impact on $D^0\to K^{*\pm} K^\mp$ decays and their CP-conjugate processes. We show that both the $D^0$-$\bar{D}^0$ mixing parameters ($x$ and…

高能物理 - 唯象学 · 物理学 2008-11-26 Zhi-zhong Xing , Shun Zhou

New physics effects may yield a detectable mass difference in the D0-D0bar system, Delta m_D. Here we show that this has an important impact on some B --> D decays. The effect involves a new source of CP violation, which arises from the…

高能物理 - 唯象学 · 物理学 2009-10-31 Carlos C. Meca , Joao P. Silva

Within the standard electroweak model we carry out an instructive analysis of the effect of $K^{0}-\bar{K}^{0}$ mixing on $CP$ asymmetries in some weak decay modes of $D^{\pm}$ and $\stackrel{(-)}{B}$$^{0}_{d}$ mesons. We point out that a…

高能物理 - 唯象学 · 物理学 2015-06-25 Zhi-zhong Xing

Flavor symmetry and symmetry breaking, K^0-\bar{K}^0 mixing and possible effects of new physics on CP violation in weak decay modes D^{\pm} \to K_{S,L} + X^{\pm}, (K_{S,L} + \pi^0)_{K^*} + X^{\pm} (for X =\pi, \rho, a_1) and D^{\pm}_s \to…

高能物理 - 唯象学 · 物理学 2009-10-31 Harry J. Lipkin , Zhi-zhong Xing

In these proceedings, we give a summary of the experimental results from CLEO, Belle, BaBar and CDF collaboration about $D^0-\bar{D}^0$ mixing and CP violation in self-conjugated-three-body decays $D^0\rightarrow K_S^0hh$ (where $h$ can be…

高能物理 - 实验 · 物理学 2013-10-24 Longke Li

We present preliminary results of several analyses searching for the effects of CP violation and mixing in the decay of $D^0$ mesons. We find no evidence of CP asymmetry in five different two-body decay modes of the $D^0$ to pairs of light…

高能物理 - 实验 · 物理学 2012-08-27 CLEO Collaboration

We review basic phenomenology on $D^0$ mixing/CP violation and recent experimental results on them. $D^0$ mixing is established by combining results from multiple experiments but no CP violation in the charm sector has been seen. $D^0$…

高能物理 - 实验 · 物理学 2011-11-28 Eunil Won

The decay $B^0\rightarrow D^{*+}D^-$ is favorable mode for studying $CP$ violation in the interference between mixing and decay for $B^0$ and $\bar{B}^0$ mesons. The latest analysis of the $CP$ parameters has been performed by the LHCb…

高能物理 - 唯象学 · 物理学 2023-04-13 Behnam Mohammadi , Elnaz Amirkhanlou

We review the experimental methods to measure mixing and time-dependent $C\!P$ violation in $D^0$ decays into two hadrons. While these phenomena are usually neglected for $D^0 \to K^- \pi^+$ decays, this approximation is not always…

高能物理 - 唯象学 · 物理学 2022-03-28 Tommaso Pajero , Michael Joseph Morello

The large data sample of the $B_c$ meson collected at the LHC experiment and the HL-LHC experiment provides us the opportunity to study the $B_c$ decays and the related physics. In this paper, we investigate the effect of $K^0-\bar{K}^0$…

高能物理 - 唯象学 · 物理学 2021-11-24 Xiao-Dong Cheng , Ru-Min Wang , Xing-Bo Yuan

The formulae for D^0-\bar{D}^0 or B^0-\bar{B}^0 mixing and CP violation at the \tau-charm or B-meson factories are derived, for the case that only the decay-time distribution of one D or B meson is to be measured. In particular, we point…

高能物理 - 唯象学 · 物理学 2009-10-31 Zhi-zhong Xing

We argue that a small or large CP-violating asymmetry {\cal A}_{\psi K_S} in B^0_d vs \bar{B}^0_d --> J/\psi K_S decays, which seems to be favored by the recent BaBar or Belle data, might hint at the existence of new physics in B^0_d -…

高能物理 - 唯象学 · 物理学 2011-03-23 Zhi-zhong Xing

We observe evidence for $D^0 - \bar{D}^0$ mixing by measuring the difference in apparent lifetime when a $D^0$ meson decays to the CP eigenstates $K^+K^-$ and $\pi^+\pi^-$, and when it decays to the final state $K^-\pi^+$. We find…

高能物理 - 实验 · 物理学 2008-11-26 Belle Collaboration , M. Staric

We review results from FNAL E791 concerning D0-D0bar mixing and CP violation in D meson decays. We have searched for mixing in semileptonic D0 -> K+\ell-\bar{\nu} decays and in hadronic D0 -> K+\pi- and D0 -> K+\pi-\pi+\pi- decays. We have…

高能物理 - 实验 · 物理学 2009-10-31 A. J. Schwartz

In view of the discovery potential associated with the future experiments of high-luminosity fixed target facilities, B-meson factories and \tau-charm factories, we highlight some typical signals of D^0-\bar{D}^0 mixing and CP violation…

高能物理 - 唯象学 · 物理学 2016-09-06 Zhi-zhong Xing

If New Physics contributes significantly to neutral meson mixing, then it is quite likely that it does so in a CP violating manner. In $D^0-\bar D^0$ mixing measured through $D^0\rightarrow K^+\pi^-$, CP violation induces a term $\propto…

高能物理 - 唯象学 · 物理学 2010-11-11 Yosef Nir

The most sensitive experimental searches for $D-\bar D$ mixing use $D^0 \to K^+ \pi^-$ decays. It is often assumed that effects of New Physics and, in particular, CP violation, can appear through the mixing, while the $c \to d u \bar s$…

高能物理 - 唯象学 · 物理学 2009-10-31 Sven Bergmann , Yosef Nir

Both BaBar and Belle have found evidence for a non-zero width difference in the $D^0$-$\bar D^0$ system. Although there is no direct experimental evidence for CP-violation in $D$ mixing (yet), we show that the measured values of the width…

高能物理 - 唯象学 · 物理学 2008-11-26 Patricia Ball

Several methods have been devised to measure the weak phase gamma using decays of the type B+- --> D K+-, where it is assumed that there is no mixing in the D0-D0bar system. However, when using these methods to uncover new physics, one must…

高能物理 - 唯象学 · 物理学 2014-11-17 Joao P Silva , Abner Soffer
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