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Related papers: Possible Signals of D^0-\bar{D}^0 Mixing and CP Vi…

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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…

High Energy Physics - Phenomenology · Physics 2009-10-28 Zhi-zhong Xing

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…

High Energy Physics - Phenomenology · Physics 2009-10-31 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…

High Energy Physics - Phenomenology · Physics 2008-11-26 Zhi-zhong Xing , Shun Zhou

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…

High Energy Physics - Experiment · Physics 2009-10-31 A. J. Schwartz

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…

High Energy Physics - Experiment · Physics 2012-08-27 CLEO Collaboration

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…

High Energy Physics - Experiment · Physics 2013-10-24 Longke Li

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…

High Energy Physics - Phenomenology · Physics 2022-03-28 Tommaso Pajero , Michael Joseph Morello

We calculate the time-dependent and time-integrated decay rates of $(D^0\bar{D}^0)\rightarrow (K^{\pm}\pi^{\mp})(l^{\pm}X^{\mp})$ at the $\psi(3.77)$ and $\psi(4.14)$ resonances. The possibilities to distinguish between the effects of…

High Energy Physics - Phenomenology · Physics 2015-06-25 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…

High Energy Physics - Experiment · Physics 2008-11-26 Belle Collaboration , M. Staric

We propose a new method to determine the mass and width differences of the two D meson mass-eigenstates as well as the CP violating parameters associated with D^0-\bar{D}^0 mixing. We show that an accurate measurement of all the mixing…

High Energy Physics - Phenomenology · Physics 2008-11-26 Nita Sinha , Rahul Sinha , T. E. Browder , N. G. Deshpande , Sandip Pakvasa

We report the results on $D^0$-$\bar{D}^0$ mixing in the decays of $D^0\to K^+\pi^-$ and $D^0\to K_S^0\pi^+\pi^-$, and CP violation in $D^0\to\pi^0\pi^0$ using a data sample with an integrated luminosity of about 1~ab$^{-1}$ recorded with…

High Energy Physics - Experiment · Physics 2014-11-11 N. K. Nisar

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…

High Energy Physics - Phenomenology · Physics 2010-11-11 Yosef Nir

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…

High Energy Physics - Phenomenology · Physics 2015-06-25 Zhi-zhong Xing

We discuss the implications of CP violation as well as final state interaction phases in the experimental search for $D^0-\bar{D}^0$ mixing. At the present level of sensitivity, these are not yet a significant systematic experimental…

High Energy Physics - Phenomenology · Physics 2009-10-28 T. E. Browder , S. Pakvasa

We present preliminary results of several analyses searching for the effects of CP violation and mixing in the decay of D0 mesons. We find no evidence of CP asymmetry in five different two-body decay modes of the D0 to pairs of light…

High Energy Physics - Experiment · Physics 2007-05-23 D. Cronin-Hennessy , CLEO Collaboration

B factories measure the CP violation parameter of B^0 Bbar^0 mixing and decay. Hadron colliders measure the dimuon charge asymmetry of an admixture of B hadrons. In this note we discuss a subtle point on how the CP violation parameter of…

High Energy Physics - Experiment · Physics 2007-05-23 B. Hoeneisen

We analyse the most recent experimental data regarding D^0 - \bar{D^0} mixing, allowing for CP violation. We focus on the dispersive part of the mixing amplitude, M^D_{12}, which is sensitive to new physics contributions. We obtain a…

High Energy Physics - Phenomenology · Physics 2009-11-07 Guy Raz

The SM predictions for CP violating effects in D meson systems are highly suppressed at the per mill level. Therefore, any experimental evidence for a sizable CP violation in D0-D0bar mixing would unambiguously point towards a New Physics…

High Energy Physics - Phenomenology · Physics 2014-11-20 Wolfgang Altmannshofer , Andrzej J. Buras , Paride Paradisi

An analysis from the D0 Collaboration measuring the charge asymmetry A^b_sl of like-sign dimuon events due to semileptonic b-hadron decays at the Fermilab Tevatron Collider is described. It differs by 3.2 standard deviations from the…

High Energy Physics - Phenomenology · Physics 2019-08-21 R. Van Kooten

Measurement results on $D^0$-$\bar D^0$ mixing and CP violation are presented. FOCUS, a fixed target experiment at Fermilab, collected a high statistics photo-produced charm sample collected during the 96-97 run. We reconstructed more than…

High Energy Physics - Experiment · Physics 2007-05-23 Hwanbae Park
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