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Direct CP violation in the hadronic decays $\Bar{B}^{0} \to \pi^{+}\pi^{-} \pi^{0}$ is investigated near the peak of the $\rho^{0}$ taking into account the effect of $\rho - \omega$ mixing. Branching ratios for processes $B^{\pm,0} \to…

High Energy Physics - Phenomenology · Physics 2010-02-17 O. Leitner , X. -H. Guo , A. W. Thomas

In the framework of QCD factorization, based on the first order of isospin violation, we study direct CP violation in the decay of $\bar{B}_{s}^{0} \to K^{0}\rho^{0}(\omega)\to K^{0}\pi^{+}\pi^{-}$ including the effect of $\rho-\omega$…

High Energy Physics - Phenomenology · Physics 2011-01-28 Gang Lü , Bao-He Yuan , Ke-Wei Wei

We study the possibility of obtaining large direct CP violation in the charmed hadron decays $D^+ \to \rho^+ \rho^0 (\omega) \to \rho^+ \pi^+\pi^-$, $D^+ \to \pi^+ \rho^0 (\omega) \to \pi^+ \pi^+\pi^-$, $D^0 \to \phi \rho^0 (\omega) \to\phi…

High Energy Physics - Phenomenology · Physics 2010-02-17 X. -H. Guo , A. W. Thomas

We study direct CP violation in the hadronic decay $B^{\pm} \to \rho^{0}\pi^{\pm}$, including the effect of $\rho - \omega$ mixing. We find that the CP violating asymmetry is strongly dependent on the CKM matrix elements, especially the…

High Energy Physics - Phenomenology · Physics 2010-02-17 X. -H. Guo , O. Leitner , A. W. Thomas

In perturbative QCD approach, based on the first order of isospin symmetry breaking, we study the direct $CP$ violation in the decay of $\bar{B}_s^0\to\rho(\omega )K^{*0}\to {\pi^+}{\pi^-}K^{*0}$. An interesting mechanism is applied to…

High Energy Physics - Phenomenology · Physics 2021-10-26 Sheng-Tao Li , Gang Lü

The LHCb collaboration has recently reported a measurement of the difference in direct CP asymmetries for the decays $\Lambda_b^0 \to J/\psi \, p \, h^-$ (with $h = K, \pi$), offering new experimental constraints on the decay dynamics of…

High Energy Physics - Phenomenology · Physics 2026-02-04 Zhu-Ding Duan , Tian-Liang Feng , Rui-Hui Li , Ming-Zhu Liu , Jian-Peng Wang , Fu-Sheng Yu

We investigate in a phenomenological way, direct CP violation in the hadronic decays $B^{\pm,0} \to \pi^{+} \pi^{-} K^{\pm,0}$ where the effect of $\rho - \omega$ mixing is included. If $N_{c}^{eff}$ (the effective parameter associated with…

High Energy Physics - Phenomenology · Physics 2010-02-17 O. Leitner , X. -H. Guo , A. W. Thomas

We calculate the direct CP violating asymmetry parameter, $a_{CP}$, for $B \to \pi^{+} \pi^{-} \pi$ and $B \to \pi^{+} \pi^{-} K$ decays, in the case where $\rho^0-\omega$ mixing effects are taken into account. We find that the direct CP…

High Energy Physics - Phenomenology · Physics 2010-02-17 O. Leitner , Xin-Heng Guo , A. W. Thomas

In perturbative QCD approach, we study the direct $CP$ violation in the decay of $\bar{B}_s^0\to\rho(\omega )\phi\to {\pi^+}{\pi^-}\phi$ via isospin symmetry breaking. An interesting mechanism involving the charge symmetry violating between…

High Energy Physics - Phenomenology · Physics 2019-06-19 Sheng-Tao Li , Gang Lü

We study the direct CP violation in $\bar{B}^0 \to \rho^0(\omega)\rho^0(\omega) \to \pi^+\pi^-\pi^+\pi^-$ (with unpolarized $\rho^0(\omega)$) via the $\rho-\omega$ mixing mechanism which causes a large strong phase difference and…

High Energy Physics - Phenomenology · Physics 2011-03-15 X. -H. Guo , Z. -H. Zhang

We study direct CP violating asymmetries (CPAs) in the two-body $\Lambda_b$ decays of $\Lambda_b\to pM(V)$ with $M(V)=K^-(K^{*-})$ and $\pi^-(\rho^-)$ based on the generalized factorization method. After simultaneously explaining the…

High Energy Physics - Phenomenology · Physics 2015-06-24 Y. K. Hsiao , C. Q. Geng

We study the localized direct CP violation in the hadronic decays $B^\pm\rightarrow \rho^0 (\omega)\pi^\pm\rightarrow\pi^+ \pi^-\pi^\pm$, including the effect caused by an interesting mechanism involving the charge symmetry violating mixing…

High Energy Physics - Phenomenology · Physics 2015-12-02 Chao Wang , Zhen-Hua Zhang , Zhen-Yang Wang , Xin-Heng Guo

We present a detailed study of direct CP violation and branching ratios in the channels $B^{0,\pm} \to \pi^{+}\pi^{-} V^{0,\pm}$, where $V$ is a vector meson ($K^{* 0,\pm}$ or $\rho^{\pm}$). Emphasis is placed upon the important role played…

High Energy Physics - Phenomenology · Physics 2009-01-07 Z. J. Ajaltouni , O. Leitner , P. Perret , C. Rimbault , A. W. Thomas

In the perturbative QCD (PQCD) approach we study the direct $CP$ violation in $B^+_{c}\rightarrow D_{(s)}^+\rho^0(\omega) \rightarrow D_{(s)}^+\pi^+\pi^-$ via the $\rho-\omega$ mixing mechanism. We find that the $CP$ violation can be…

High Energy Physics - Phenomenology · Physics 2016-08-31 Gang Lü , Sheng-Tao Li , Yu-Ting Wang

We study the direct CP violation in the $\tau^\pm\rightarrow K^\pm \rho^0 (\omega)\nu_\tau \rightarrow K^\pm \pi^+\pi^-\nu_\tau$ decay process in the Standard Model. An interesting mechanism involving the charge symmetry violating mixing…

High Energy Physics - Phenomenology · Physics 2015-06-02 Chao Wang , Xin-Heng Guo , Ying Liu , Rui-Cheng Li

We present a novel dynamics for generating sizable CP-violating asymmetries in the decays of charged $B^\mp\to \pi^\mp \omega, \pi^\mp\rho^0, \pi^0\rho^\mp$, and in $\bar{B^0}(B^0)\to\pi^\mp\rho^\pm$. The dynamics for the necessary…

High Energy Physics - Phenomenology · Physics 2009-11-10 Saul Barshay , Georg Kreyerhoff , Lalit M. Sehgal

We review the direct CP and T violation in the three-body baryonic B decays in the standard model. In particular, we emphasize that the direct CP violating asymmetry in $B^\pm\to p\bar p K^{*\pm}$ is around 22% and the direct $T$ violating…

High Energy Physics - Phenomenology · Physics 2008-11-26 C. Q. Geng , Y. K. Hsiao

We present preliminary measurements of direct and indirect CP-violating asymmetries in the decays of neutral B mesons to pi+pi-pi0 and K+-pi-+pi0 final states dominated by the rho+- resonance, using a time-dependent maximum likelihood…

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

We investigate $B^{\pm,0}\rightarrow \rho^0 (\omega )h^{\pm,0}$, where $\rho^0 (\omega)$ decays to $\pi^+\pi^-$ and $h$ is any hadronic final states, such as $\pi$ or $K$. We find large direct $CP$ asymmetries via $\rho-\omega$…

High Energy Physics - Phenomenology · Physics 2009-10-28 Ryoji Enomoto , Masaharu Tanabashi

In the QCD factorization (QCDF) approach we study the direct $CP$ violation in $\bar{B}^{0}\rightarrow\rho^0(\omega)\rho^0(\omega)\rightarrow\pi^+\pi^-\pi^+\pi^-$ via the $\rho-\omega$ mixing mechanism. We find that the $CP$ violation can…

High Energy Physics - Phenomenology · Physics 2014-05-23 Gang Lü , Jia-Qi Lei , Xin-Heng Guo , Zhen-Hua Zhang , Ke-Wei Wei
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